Add release workflow to automate package distribution

.forgejo/workflows/release.yaml

@@ -0,0 +1,24 @@
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  serve:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Prepare files
+        run: |
+          mkdir -p /tmp/micromail /tmp/release
+          cp package.json /tmp/micromail/
+          cp -r micromail /tmp/micromail/
+          cd /tmp/micromail
+          tar -czvf /tmp/release/micromail.tar.gz .
+      - name: Make release
+        uses: actions/forgejo-release@v2.6.0
+        with:
+          direction: upload
+          release-dir: /tmp/release
+          token: ${{ secrets.FORGEJO_TOKEN }}