Run tests if pre-commit config is modified

Author: cclauss

.github/workflows/format-lint.yml

@@ -11,6 +11,7 @@ on:
       - '**.c'
       - '**.py'
       - '**.rst'
+      - '.pre-commit-config.yaml'
 
   pull_request:
     branches: main
@@ -19,6 +20,7 @@ on:
       - '**.c'
       - '**.py'
       - '**.rst'
+      - '.pre-commit-config.yaml'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-format-lint