Added Gitea Action for Build and Test on PR and manually triggerable

.gitea/workflows/ci.yaml

@@ -0,0 +1,28 @@
+name: CI
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+concurrency:
+  group: ci-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Build & Test
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+
+    steps:
+      - name: Check out
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 25
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: '25'
+
+      - name: Build and run tests
+        run: ./mvnw --batch-mode --no-transfer-progress verify