chore(ci): fix ignore filter (#21580)

Author: pront

.github/workflows/regression.yml

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