Cache Maven dependencies in CI workflow

[tisonkun]

Currently, unit tests on macOS consume over 20 minutes, which is relatively long for me. It seems the dependencies download step consumes the major time. Thus, we can improve the case by caching maven depedencies.

Related to -

hawkeye/.github/workflows/ci.yml

Lines 65 to 72 in 2f4e49c

	- uses: actions/checkout@v3
	- name: Setup Java
	uses: actions/setup-java@v3
	with:
	distribution: 'temurin'
	java-version: '17'
	- name: Maven verify
	run: ./mvnw clean verify

Ref impl -

      - name: Cache local Maven repository
        uses: actions/cache@v3
        timeout-minutes: 5
        with:
          path: |
            ~/.m2/repository/*/*/*
            !~/.m2/repository/org/apache/pulsar
          key: ${{ runner.os }}-m2-dependencies-core-modules-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-m2-dependencies-core-modules-