Update glam requirement from 0.15.1 to 0.17.3 (#2500)

Updates the requirements on [glam](https://github.com/bitshifter/glam-rs) to permit the latest version.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/bitshifter/glam-rs/blob/master/CHANGELOG.md">glam's changelog</a>.</em></p>
<blockquote>
<h2>[0.17.3] - 2021-07-18</h2>
<h3>Fixed</h3>
<ul>
<li>Fix alignment unit tests on non x86 platforms.</li>
</ul>
<h2>[0.17.2] - 2021-07-15</h2>
<h3>Fixed</h3>
<ul>
<li>Fix alignment unit tests on i686 and S390x.</li>
</ul>
<h2>[0.17.1] - 2021-06-29</h2>
<h3>Added</h3>
<ul>
<li>Added <code>serde</code> support for <code>Affine2</code>, <code>DAffine2</code>, <code>Affine3A</code> and <code>DAffine3</code>.</li>
</ul>
<h2>[0.17.0] - 2021-06-26</h2>
<h3>Breaking changes</h3>
<ul>
<li>The addition of <code>Add</code> and <code>Sub</code> implementations of scalar values for vector
types may create ambiguities with existing calls to <code>add</code> and <code>sub</code>.</li>
<li>Removed <code>From&lt;Mat3&gt;</code> implementation for <code>Mat2</code> and <code>From&lt;DMat3&gt;</code> for <code>DMat2</code>.
These have been replaced by <code>Mat2::from_mat3()</code> and <code>DMat2::from_mat3()</code>.</li>
<li>Removed <code>From&lt;Mat4&gt;</code> implementation for <code>Mat3</code> and <code>From&lt;DMat4&gt;</code> for <code>DMat3</code>.
These have been replaced by <code>Mat3::from_mat4()</code> and <code>DMat3::from_mat4()</code>.</li>
<li>Removed deprecated <code>from_slice_unaligned()</code>, <code>write_to_slice_unaligned()</code>,
<code>from_rotation_mat4</code> and <code>from_rotation_ypr()</code> methods.</li>
</ul>
<h3>Added</h3>
<ul>
<li>Added <code>col_mut()</code> method which returns a mutable reference to a matrix column
to all matrix types.</li>
<li>Added <code>AddAssign</code>, <code>MulAssign</code> and <code>SubAssign</code> implementations for all matrix
types.</li>
<li>Added <code>Add</code> and <code>Sub</code> implementations of scalar values for vector types.</li>
<li>Added more <code>glam_assert!</code> checks and documented methods where they are used.</li>
<li>Added vector projection and rejection methods <code>project_onto()</code>,
<code>project_onto_normalized()</code>, <code>reject_from()</code> and <code>reject_from_normalized()</code>.</li>
<li>Added <code>Mat2::from_mat3()</code>, <code>DMat2::from_mat3()</code>, <code>Mat3::from_mat4()</code>,
<code>DMat3::from_mat4()</code> which create a smaller matrix from a larger one,
discarding a final row and column of the input matrix.</li>
<li>Added <code>Mat3::from_mat2()</code>, <code>DMat3::from_mat2()</code>, <code>Mat4::from_mat3()</code> and
<code>DMat4::from_mat3()</code> which create an affine transform from a smaller linear
transform matrix.</li>
</ul>
<h3>Changed</h3>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="ecf3904b2f"><code>ecf3904</code></a> Prepare release 0.17.3</li>
<li><a href="95e02bb43e"><code>95e02bb</code></a> Merge branch 'master' of github.com:bitshifter/glam-rs</li>
<li><a href="c6dc702583"><code>c6dc702</code></a> More alignment test fixes for when SSE2 is not avaialable.</li>
<li><a href="87a3b25872"><code>87a3b25</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/bitshifter/glam-rs/issues/216">#216</a> from bitshifter/prepare-0.17.2</li>
<li><a href="269e514090"><code>269e514</code></a> Prepare for 0.17.2 release.</li>
<li><a href="1da7d6459c"><code>1da7d64</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/bitshifter/glam-rs/issues/215">#215</a> from bitshifter/issue-213</li>
<li><a href="dc60e20925"><code>dc60e20</code></a> Fix align asserts on i686 and S390x architectures.</li>
<li><a href="bd8b30e9fb"><code>bd8b30e</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/bitshifter/glam-rs/issues/212">#212</a> from remilauzier/master</li>
<li><a href="a4e97c0b54"><code>a4e97c0</code></a> Update approx to 0.5</li>
<li><a href="059f619525"><code>059f619</code></a> Prepare 0.17.1 release (<a href="https://github-redirect.dependabot.com/bitshifter/glam-rs/issues/211">#211</a>)</li>
<li>Additional commits viewable in <a href="https://github.com/bitshifter/glam-rs/compare/0.15.1...0.17.3">compare view</a></li>
</ul>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting `@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually
- `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)


</details>

crates/bevy_math/Cargo.toml

@@ -9,5 +9,5 @@ license = "MIT OR Apache-2.0"
 keywords = ["bevy"]
 
 [dependencies]
-glam = { version = "0.15.1", features = ["serde", "bytemuck"] }
+glam = { version = "0.17.3", features = ["serde", "bytemuck"] }
 bevy_reflect = { path = "../bevy_reflect", version = "0.5.0", features = ["bevy"] }

crates/bevy_reflect/Cargo.toml

@@ -24,7 +24,7 @@ parking_lot = "0.11.0"
 thiserror = "1.0"
 serde = "1"
 smallvec = { version = "1.6", features = ["serde", "union", "const_generics"], optional = true }
-glam = { version = "0.15.1", features = ["serde"], optional = true }
+glam = { version = "0.17.3", features = ["serde"], optional = true }
 
 [dev-dependencies]
 ron = "0.6.2"