Use action-validator to valdate workflows

.github/workflows/validate_workflows.yaml

@@ -0,0 +1,22 @@
+name: Workflow validation
+
+on:
+ push:
+ paths:
+ - '.github/workflows/*'
+
+jobs:
+ build:
+ runs-on: ubuntu-latest
+ steps:
+ - name: Checkout checkbox monorepo
+ uses: actions/checkout@v3
+ - name: Install action-validator with asdf
+ uses: asdf-vm/actions/install@v3
+ with:
+ tool_versions: |
+ action-validator 0.5.1
+ - name: Lint Actions
+ run: |
+ find .github/workflows -type f \( -iname \*.yaml -o -iname \*.yml \) \
+ | xargs -I {} action-validator --verbose {}