Create close-issues (#1491)

Author: Pasarus

.github/workflows/close-issues

@@ -0,0 +1,18 @@
+name: Close issues related to a merged pull request based on main branch.
+
+on:
+  pull_request:
+    types: [closed]
+    branches:
+      - main
+
+jobs:
+  closeIssueOnPrMergeTrigger:
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Closes issues related to a merged pull request.
+        uses: ldez/gha-mjolnir@v1.2.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}