chore(ci): Run regression tests if workflow changed (#21521)

Currently ignores changes to regression.yml

Signed-off-by: Jesse Szwedko <[email protected]>

.github/workflows/regression.yml

@@ -68,7 +68,7 @@ jobs:
           all_changed:
             - added|deleted|modified: "**"
           ignore:
-            - "./.github/**"
+            - "./.github/!(regression.yml)"
             - "./.gitignore"
             - "distribution/**"
             - "rust-doc/**"