fix: run ci for workflows

Author: psteinroe

Diff for: .github/workflows/pull_request.yml

@@ -14,6 +14,8 @@ on:
       - "rustfmt.toml"
       # or in js packages
       - "packages/**"
+      # or in workflows
+      - ".github/workflows/**"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.ref }}