Upload Fabric platform to Modrinth

.github/workflows/publish.yml

@@ -0,0 +1,16 @@
+name: publish
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: gradle/wrapper-validation-action@v1
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: 17
+      - name: build and publish
+        env:
+          MODRINTH_TOKEN: ${{ secrets.MODRINTH_TOKEN }}
+        run: ./gradlew fabric:modrinth