.forgejo: add release job

.forgejo/workflows/generate-tarball.yml

@@ -11,7 +11,7 @@ jobs:
     name: Build tarball w/ submodules
     runs-on: x86_64
     container:
-      image: alpinelinux/alpine-gitlab-ci:latest
+      image: alpine:latest
     env:
       CI_PROJECT_NAME: zotero
     steps:
@@ -35,3 +35,22 @@ jobs:
         with:
           name: tarball
           path: zotero-${{ inputs.ref_name }}.*
+  upload-release:
+    runs-on: x86_64
+    container:
+      imagine: alpine:latest
+    steps:
+      - name: Environment setup
+        run: apk add nodejs
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 500
+          ref: ${{ inputs.ref_name }}
+      - uses: actions/forgejo-release@v1
+        with:
+          direction: upload
+          url: https://api.ayakael.net
+          repo: mirrors/zotero
+          tag: ${{ inputs.ref_name }}
+          release-dir: ./
+          release-notes: "This release includes a fully buildable tarball"