ci: add slack notification

Author: Huzaif Mushtaq Mir

.github/workflows/python-publish.yml

@@ -38,3 +38,13 @@ jobs:
 
         git tag "$VERSION" 2>/dev/null || echo "Tag already exists"
         git push origin "$VERSION" || true
+
+    - name: Notify slack releases channel
+      uses: slackapi/slack-github-action@v2
+      with:
+        webhook: ${{ secrets.SLACK_RELEASES_PROD_WEBHOOK_URL }}
+        webhook-type: webhook-trigger
+        payload: |
+          status: "${{ job.status }}"
+          environment: "PRODUCTION"
+          project: "LexFloatClient Python"