Add workflow for branch age notification

[santoshyadavdev]

Adds a new GitHub Actions workflow to send notifications for branches older than 180 days.

• Workflow Configuration: Introduces a new file .github/workflows/branch-notification.yml named 'Branch Age Notification'.
• Schedule Trigger: Configures the workflow to run weekly, specifically every Friday at 12pm CET.
• Branch Age Check Job: Adds a job that checks for branches older than 180 days using actions/github-script@v6.
• Notification Logic Placeholder: Includes a placeholder for adding notification logic for branches identified as older than 180 days.

---

For more details, open the Copilot Workspace session.

[nx-cloud]

☁️ Nx Cloud Report

CI is running/has finished running commands for commit 0f1c322. As they complete they will appear below. Click to see the status, the terminal output, and the build insights.

📂 See all runs for this CI Pipeline Execution

---

✅ Successfully ran 1 target

• nx run-many --target=build --all

---

Sent with 💌 from NxCloud.

[github-actions]

This PR has been automatically marked as stale because it has not had recent activity for 6 months. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions]

Closing this PR due to no activity for 6 months.