Replace all usages of /bin/bash shebang with /usr/bin/env (#40756)

Replace all usages of /bin/bash with /usr/bin/env

/usr/bin/env is nearly guaranteed to always exist at that location, which can't be said about /bin/bash and /bin/sh.

Co-authored-by: opl <4833621+opl@users.noreply.github.com>

BuildChecker/git_helper.py

@@ -13,7 +13,7 @@ from typing import List
 
 SOLUTION_PATH = Path("..") / "SpaceStation14.sln"
 # If this doesn't match the saved version we overwrite them all.
-CURRENT_HOOKS_VERSION = "3"
+CURRENT_HOOKS_VERSION = "4"
 QUIET = len(sys.argv) == 2 and sys.argv[1] == "--quiet"