chore(issues): automate conversation lock on issue close (#10596)

.github/workflows/issue-lock-on-close.yml

@@ -0,0 +1,51 @@
+name: 'Tools: Lock Issue on Close'
+
+on:
+  issues:
+    types:
+      - closed
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.issue.number }}
+  cancel-in-progress: false
+
+jobs:
+  lock:
+    if: |
+      github.repository == 'prowler-cloud/prowler' &&
+      github.event.issue.locked == false
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    permissions:
+      issues: write
+    steps:
+      - name: Harden Runner
+        uses: step-security/harden-runner@fa2e9d605c4eeb9fcad4c99c224cee0c6c7f3594 # v2.16.0
+        with:
+          egress-policy: block
+          allowed-endpoints: >
+            api.github.com:443
+
+      - name: Comment and lock issue
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8
+        with:
+          script: |
+            const { owner, repo } = context.repo;
+            const issue_number = context.payload.issue.number;
+
+            try {
+              await github.rest.issues.createComment({
+                owner,
+                repo,
+                issue_number,
+                body: 'This issue is now locked as it has been closed. If you are still hitting a related problem, please open a new issue and link back to this one for context. Thanks!'
+              });
+            } catch (error) {
+              core.warning(`Failed to post lock comment on issue #${issue_number}: ${error.message}`);
+            }
+
+            const lockParams = { owner, repo, issue_number };
+            if (context.payload.issue.state_reason === 'completed') {
+              lockParams.lock_reason = 'resolved';
+            }
+            await github.rest.issues.lock(lockParams);