create telegram.yml GitHub workflow action

Author: newtonick

Diff for: .github/workflows/telegram.yml

@@ -0,0 +1,18 @@
+name: GitHub Notify on Telegram
+on:
+  pull_request:
+    branches:
+      - dev
+    types:
+      - closed
+
+jobs:
+  if_merged:
+    if: github.event.pull_request.merged == true
+    runs-on: ubuntu-latest
+    steps:
+      - name: Notify on Telegram
+        uses: EverythingSuckz/github-telegram-notify@main
+        with:
+          bot_token: '${{ secrets.BOT_TOKEN }}'
+          chat_id: '${{ secrets.CHAT_ID }}'