[Backport 8.13] Define Pipeline._meta as optional
#2721
Workflow file for this run
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| name: License headers | |
| on: [pull_request] | |
| jobs: | |
| build: | |
| runs-on: ubuntu-latest | |
| steps: | |
| - uses: actions/checkout@v2 | |
| - name: Check license headers | |
| run: | | |
| ./.github/check-license-headers.sh |