ci: add a workflow for listen to an issues state changes

Part of #1617

[skip ci]

Author: php-coder

.github/workflows/todos-handle-issue-changes.yml

@@ -0,0 +1,39 @@
+name: Update an issues state in a mapping
+
+on:
+  # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#onevent_nametypes
+  issues:
+    # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#issues
+    types:
+      - reopened
+      - closed
+
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#permissions
+permissions:
+  contents: write # for "git push"
+
+defaults:
+  # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#defaultsrun
+  run:
+    # Enable fail-fast behavior using set -eo pipefail
+    # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#exit-codes-and-error-action-preference
+    shell: bash
+
+jobs:
+  update-mapping:
+    name: Update an issues state
+    # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idruns-on
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Clone source code
+        uses: actions/[email protected] # https://github.com/actions/checkout
+        with:
+          # Whether to configure the token or SSH key with the local git config. Default: true
+          persist-credentials: true
+          # https://github.com/actions/checkout#checkout-a-different-branch
+          ref: generated-todos
+
+      - name: Show a payload
+        env:
+          GITHUB_CONTEXT: ${{ toJson(github) }}
+        run: echo "$GITHUB_CONTEXT"