Enable cache for pre-commit (#31071)

* enable cache

* test cache

* commai cache

* remove id

* only save on master

---------

Co-authored-by: Justin Newberry <justin@comma.ai>
old-commit-hash: f0f7e86dcc

.github/workflows/setup-pre-commit/action.yaml

@@ -0,0 +1,12 @@
+name: 'set up pre-commit environment'
+
+runs:
+  using: "composite"
+  steps:
+    - uses: ./.github/workflows/auto-cache
+      with: 
+        path: .ci_cache/pre-commit
+        key: pre-commit-${{ hashFiles('**/.pre-commit-config.yaml') }}
+        restore-keys: |
+          pre-commit-
+        save: ${{ github.ref == 'refs/heads/master' && github.event_name != 'pull_request' && github.repository == 'commaai/openpilot' }}