Add a "Create a GitHub release" workflow on git tag

Signed-off-by: tdruez <tdruez@nexb.com>

Author: tdruez

.github/workflows/gh-release.yml

@@ -0,0 +1,17 @@
+name: Create a GitHub release
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - "v*.*.*"
+
+jobs:
+  create-github-release:
+    runs-on: ubuntu-22.04
+
+    steps:
+      - name: Create a GitHub release
+        uses: softprops/action-gh-release@v1
+        with:
+          draft: false