Precommit: do a sanity check on github workflows (#29790)

* sanity check on github actions

* That one doesn’t apply to us
old-commit-hash: d3c5ac5545

.pre-commit-config.yaml

@@ -83,3 +83,7 @@ repos:
         name: validate poetry lock
         args:
         - --check
+-   repo: https://github.com/python-jsonschema/check-jsonschema
+    rev: 0.26.3
+    hooks:
+    -   id: check-github-workflows