fix(ci): add integration test with docker image (#226)

* fix: add git safe directory for /workdir
* chore: use docker staged build

.github/workflows/ci.yml

@@ -59,3 +59,32 @@ jobs:
         uses: golangci/golangci-lint-action@v3
         with:
           version: ${{ env.GOLANGCI_VERSION }}
+
+  integration-tests:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - name: Updating and upgrading brew
+        if: matrix.os == 'macos-latest'
+        run: |
+          bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
+          brew --version
+      - name: Install docker-cli and start colima 
+        if: matrix.os == 'macos-latest'
+        # https://github.com/docker/for-mac/issues/2359#issuecomment-943131345
+        run: |
+          brew install docker
+          colima start
+          docker info
+      - name: Test docker image
+        run: |
+          docker build -t git-chglog:ci-build .
+          docker run -v ${GITHUB_WORKSPACE}:/workdir -w /workdir git-chglog:ci-build > ${GITHUB_WORKSPACE}/ci-build.md
+          head ${GITHUB_WORKSPACE}/ci-build.md