feat: explicitly package release

.github/workflows/release.yml

@@ -0,0 +1,45 @@
+# *******************************************************************************
+# Copyright (c) 2026 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+
+name: Release Module
+
+on:
+  release:
+    types: [published]
+
+permissions:
+  contents: write
+
+jobs:
+  archive:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.release.tag_name }}
+
+      - name: Create source archive
+        run: |
+          git archive \
+            --format=tar.gz \
+            --prefix="module/" \
+            -o "bzlmod-${{ github.event.release.tag_name }}.tar.gz" \
+            HEAD
+
+      - name: Upload to release
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          gh release upload "${{ github.event.release.tag_name }}" \
+            "bzlmod-${{ github.event.release.tag_name }}.tar.gz"