CI: instal docker for macos

Author: mr-c

.github/workflows/ci-tests.yml

@@ -37,6 +37,16 @@ jobs:
         run: |
           pip install -U pip setuptools wheel
           pip install tox tox-gh-actions
+      - name: 'SETUP MacOS: load Homebrew cache'
+        uses: actions/cache@v3
+        if: runner.os == 'macOS'
+        with:
+           path: |
+             ~/Library/Caches/Homebrew/downloads/*--Docker.dmg
+           key: brew-actions-setup-docker-1.0.11
+           restore-keys: brew-actions-setup-docker-
+      - name: setup docker on macos (default stable version)
+        uses: docker-practice/actions-setup-docker@master
       - name: Test with tox
         run: tox
       - name: Upload coverage to Codecov