Merged PR 291924: Always checkout bash scripts with LF endings

When building Linux Docker images on a Windows machine, the bash scripts that get copied to the image have CRLF endings because of our Git settings. This change forces Git to always checkout bash scripts with LF line endings, regardless of the platform's default line endings.

.gitattributes

@@ -1,6 +1,9 @@
 # Auto detect text files and perform LF normalization
 *        text=auto
 
+# Declare files that will always have LF line endings on checkout
+*.sh text eol=lf
+
 # Binary files to ignore and not modify
 *.pfx binary
 *.ico binary