add action to auto-generate contributors

.github/workflows/contributors.yaml

@@ -0,0 +1,39 @@
+name: Contributors
+
+on:
+  schedule:
+    - cron: '0 12 * * 1' # At 12 noon on Monday.
+
+jobs:
+  contributors:
+    runs-on: ubuntu-latest
+    if: ${{ !startsWith( github.event.head_commit.message , '[auto-update-contributors]' ) }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: GitHub Contributors Action
+        uses: hyperledger-tooling/github-contributors-action@main
+        env:
+          GITHUB_AUTH_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          SOURCE_GITHUB_REPOSITORY: flyteorg
+          CONTRIBUTORS_SECTION_PATTERN: <!-- CONTRIBUTORS START -->
+          CONTRIBUTORS_SECTION_END_PATTERN: <!-- CONTRIBUTORS END -->
+          INPUT_TEMPLATE_FILE: ./assets/contributor-template.md
+          FILE_WITH_PATTERN: ./README.md
+      - name: Create Pull Request
+        id: cpr
+        uses: peter-evans/create-pull-request@v3
+        with:
+          token: ${{ secrets.FLYTE_BOT_PAT }}
+          commit-message: '[auto-update-contributors] update all-contributors'
+          committer: Flyte Bot <[email protected]>
+          author: ${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>
+          signoff: true
+          branch: auto-update-contributors
+          base: contributors-action
+          delete-branch: true
+          title: 'auto-update contributors'
+          labels: auto-update-contributors
+          team-reviewers: |
+            owners
+            maintainers
+          draft: false

CONTRIBUTORS.md

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+### Contributors
+
+<!-- CONTRIBUTORS START -->
+
+<!-- CONTRIBUTORS END -->