Add GitHub Actions workflow for Packagist publishing

Author: mrnaeem4

.github/workflows/publish.yml

@@ -0,0 +1,25 @@
+name: Publish to Packagist
+
+on:
+  push:
+    tags:
+      - 'v*'
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    name: Publish package
+    runs-on: ubuntu-latest
+    steps:
+      - name: Trigger Packagist update
+        env:
+          PACKAGIST_USERNAME: ${{ secrets.PACKAGIST_USERNAME }}
+          PACKAGIST_TOKEN: ${{ secrets.PACKAGIST_TOKEN }}
+          PACKAGIST_REPOSITORY: https://github.com/mrnaeem4/ci3-request-analysis
+        run: |
+          curl -sS -X POST \
+            -H 'Content-Type: application/json' \
+            -H "Authorization: Bearer ${PACKAGIST_USERNAME}:${PACKAGIST_TOKEN}" \
+            -d "{\"repository\":\"${PACKAGIST_REPOSITORY}\"}" \
+            https://packagist.org/api/update-package