add build action

.gitea/workflows/build.yml

@@ -0,0 +1,18 @@
+name: Build with cached gradle
+run-name: Building for ${{ gitea.actor }}
+on: [push]
+
+jobs:
+  Build-with-gradle:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: actions/setup-java@v5
+        with:
+          distribution: 'temurin'
+          java-version: '21'
+          cache: 'gradle'
+          cache-dependency-path: | # optional
+            sub-project/*.gradle*
+            sub-project/**/gradle-wrapper.properties
+      - run: ./gradlew build --no-daemon

.gitea/workflows/hello_world.yml

@@ -10,7 +10,7 @@ jobs:
       - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by Gitea!"
       - run: echo "🔎 The name of your branch is ${{ gitea.ref }} and your repository is ${{ gitea.repository }}."
       - name: Check out repository code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - run: echo "💡 The ${{ gitea.repository }} repository has been cloned to the runner."
       - run: echo "🖥️ The workflow is now ready to test your code on the runner."
       - name: List files in the repository