Bump ssh2 from 1.3.0 to 1.4.0

Bumps [ssh2](https://github.com/mscdex/ssh2) from 1.3.0 to 1.4.0.
- [Release notes](https://github.com/mscdex/ssh2/releases)
- [Commits](https://github.com/mscdex/ssh2/compare/v1.3.0...v1.4.0)

---
updated-dependencies:
- dependency-name: ssh2
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -64,7 +64,7 @@
     "source-code-pro": "^2.38.0",
     "source-map-loader": "^3.0.0",
     "source-sans-pro": "3.6.0",
-    "ssh2": "^1.3.0",
+    "ssh2": "^1.4.0",
     "style-loader": "^3.2.1",
     "svg-inline-loader": "^0.8.2",
     "ts-loader": "^9.2.3",

yarn.lock

@@ -7547,10 +7547,10 @@ sprintf-js@~1.0.2:
   resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
   integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
 
-ssh2@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/ssh2/-/ssh2-1.3.0.tgz#bcd42ef7796250268b6ff6b0bbff2697029e91b9"
-  integrity sha512-OjBQ5FR+ClYav3fRnvkhycmd5co5qEfofBaZEqVO3I4tKJLZqu+Ku4LN4nJSckjhqQnomqBqlCdvD3iGV+6isA==
+ssh2@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/ssh2/-/ssh2-1.4.0.tgz#e32e8343394364c922bad915a5a7fecd67d0f5c5"
+  integrity sha512-XvXwcXKvS452DyQvCa6Ct+chpucwc/UyxgliYz+rWXJ3jDHdtBb9xgmxJdMmnIn5bpgGAEV3KaEsH98ZGPHqwg==
   dependencies:
     asn1 "^0.2.4"
     bcrypt-pbkdf "^1.0.2"