CI: create draft release with artifacts for tags

.github/release_template.md

@@ -0,0 +1,18 @@
+This is release vVERSION of Vali.
+
+Vali is a fork of Loki 2.2.1 under the Apache 2.0 License.
+It is currently limited to maintenance and security updates.
+
+### Notable changes
+
+* INSERT CHANGES HERE
+
+### Installation
+
+The components of Vali are currently distributed as container images.
+
+* `ghcr.io/credativ/vali:vVERSION`
+  https://github.com/credativ/vali/pkgs/container/vali
+
+* `ghcr.io/credativ/valitail:vVERSION`
+  https://github.com/credativ/vali/pkgs/container/valitail

.github/workflows/release.yml

@@ -52,3 +52,21 @@ jobs:
           name: logcli_${{ matrix.arch }}
           path: logcli_${{ matrix.arch }}.zip
           retention-days: 3
+
+  release:
+    runs-on: ubuntu-latest
+    needs: logcli
+    if: startsWith(github.event.ref, 'refs/tags/v')
+    permissions:
+      contents: write
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Create draft release
+        uses: ncipollo/release-action@v1
+        with:
+          artifacts: "logcli_*.zip"
+          artifactErrorsFailBuild: true
+          bodyFile: ".github/release_template.md"
+          draft: true