Add GitHub build

.editorconfig

@@ -10,3 +10,6 @@ insert_final_newline = true
 
 [gradle/verification-metadata.xml]
 indent_size = 3
+
+[*.{json,yml,yaml}]
+indent_size = 2

.github/workflows/build.yaml

@@ -0,0 +1,27 @@
+name: Build Gradle project
+
+on:
+  push:
+
+jobs:
+  build:
+    runs-on: macos-13
+
+    steps:
+      - name: Checkout project sources
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '21'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Build
+        run: |
+          ./gradlew build