tests/bind: Increase escape delay

We just had the following output on Github Actions:

 INPUT      +0.94 ms (Line 34): echo ghi jkl
 INPUT      +0.72 ms (Line 35): \x1b
 INPUT     +63.12 ms (Line 37): t\r

The default escape delay is 30ms, that had 60ms between an escape and
a tab, so it missed it.

So: We have to increase the delay for CI's benefit. Let's try with
80ms, because otherwise we'd have to bump up other timeouts and the
bind tests take long enough as it is.

tests/pexpects/bind.py

@@ -20,6 +20,11 @@ expect_prompt(increment=False)
 
 # Fish should start in default-mode (i.e., emacs) bindings. The default escape
 # timeout is 30ms.
+#
+# Because common CI systems are awful, we have to increase this:
+
+sendline("set -g fish_escape_delay_ms 80")
+expect_prompt("")
 
 # Verify the emacs transpose word (\et) behavior using various delays,
 # including none, after the escape character.
@@ -42,7 +47,7 @@ expect_prompt("\r\njkl ghi\r\n")
 # occur and the "t" should become part of the text that is echoed.
 send("echo mno pqr")
 send("\033")
-sleep(0.200)
+sleep(0.100)
 send("t\r")
 # emacs transpose words, default timeout: long delay
 expect_prompt("\r\nmno pqrt\r\n")