(chore) run ci on push to main

.github/workflows/push.yaml

@@ -0,0 +1,57 @@
+name: Push
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        os: [ ubuntu-latest ]
+        java-distribution:
+          - temurin
+          - zulu
+          - adopt-hotspot
+          - adopt-openj9
+          - liberica
+          - microsoft
+          - corretto
+          - semeru
+          - oracle
+          - dragonwell
+      fail-fast: false
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up "${{ matrix.java-distribution }}" JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: ${{ matrix.java-distribution }}
+          java-version: 21
+
+      - name: Cache Gradle packages
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+          restore-keys: gradle-${{ runner.os }}
+
+      - name: Install PCRE (Ubuntu)
+        if: ${{ matrix.os == 'ubuntu-latest' }}
+        run: sudo apt-get install -y libpcre2-8-0
+
+      - name: Build with Gradle (Ubuntu)
+        if: ${{ matrix.os == 'ubuntu-latest' }}
+        run: ./gradlew build -Dpcre2.library.path=/usr/lib/x86_64-linux-gnu
+
+      - name: Run tests (Ubuntu)
+        if: ${{ matrix.os == 'ubuntu-latest' }}
+        run: ./gradlew test -Dpcre2.library.path=/usr/lib/x86_64-linux-gnu