Add build and publish workflows

.github/workflows/build.yml

@@ -0,0 +1,18 @@
+name: Build
+
+on: [push, pull_request]
+
+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: Grant execute permission for gradlew
+        run: chmod +x gradlew
+      - name: Build with Gradle
+        run: ./gradlew build

.github/workflows/publish.yml

@@ -0,0 +1,19 @@
+name: Release
+
+on: [workflow_dispatch]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          distribution: "temurin"
+          java-version: "17"
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+      - name: Build and publish with Gradle
+        run: ./gradlew build modrinth --stacktrace
+        env:
+          MODRINTH_TOKEN: ${{ secrets.MODRINTH_TOKEN }}