chore: add github action for merged pull requests

.github/workflows/pr-merge-comment.yml

@@ -0,0 +1,40 @@
+name: Comment on Merged PR
+
+on:
+  pull_request:
+    types: [closed]
+
+jobs:
+  comment-on-pr:
+    if: >
+      github.event.pull_request.merged == true &&
+      github.event.pull_request.user.login != 'dependabot[bot]' &&
+      github.event.pull_request.user.login != github.repository_owner
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Comment on the PR
+        uses: actions/github-script@v6
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          script: |
+            const pullRequest = context.payload.pull_request;
+            const issue_number = pullRequest.number;
+            const user_login = pullRequest.user.login;
+
+            // Check if the author is neither 'dependabot[bot]' nor the repository owner
+            if (user_login !== 'dependabot[bot]' && user_login !== context.repo.owner) {
+              const commentBody = `
+                Hi @${user_login}!
+
+                This task has been completed and will be implemented in the next project release.
+
+                Thank you for your contribution!
+              `;
+
+              await github.issues.createComment({
+                ...context.repo,
+                issue_number: issue_number,
+                body: commentBody.trim()
+              });
+            }