Github workflow: execute Maven tests with pom.xml cached-dependencies (.github/workflows/main.yml)

main.yml

name: 'Test PRs'

on:
  pull_request:
    types: [ opened, synchronize, reopened ]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
      - name: Set up Java
        uses: actions/setup-java@v3
        with:
          distribution: 'temurin'
          java-version: '19'
      - name: Cache local Maven repository
        uses: actions/cache@v3
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-
      - name: Maven test
        run: mvn test