add publish workflow

Author: Andrei Hava

.github/workflows/publish.yml

@@ -0,0 +1,38 @@
+name: Publish
+
+on:
+  push:
+    tags:
+      - '*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Java
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: temurin
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Build
+        run: ./gradlew build
+
+      - name: Publish CurseForge
+        run: ./gradlew curseforge
+        env:
+          CURSEFORGE_TOKEN: ${{ secrets.CURSEFORGE_TOKEN }}
+
+      - name: Publish Modrinth
+        run: ./gradlew modrinth
+        env:
+          MODRINTH_TOKEN: ${{ secrets.MODRINTH_TOKEN }}