chore: hide graphql-codegen within PR previews

Signed-off-by: Adam Setch <[email protected]>

Author: setchy

.gitattributes

@@ -1,7 +1,6 @@
 # Define auto-generated file patterns to hide within GitHub's PR diff/file preview.
 # https://docs.github.com/en/repositories/working-with-files/managing-files/customizing-how-changed-files-appear-on-github
 
-
 # Snapshots are taken by our test suite and used to determine regressions.
 *.snap linguist-generated=true