Update GitHub Actions workflow to install Docker on macOS

- Added a command to install Docker using Homebrew in the macOS setup step, ensuring the necessary environment for Docker and Docker Compose is established.

Author: efraespada

.github/workflows/gbf_vector.yml

@@ -29,6 +29,7 @@ jobs:
       - name: Setup docker and docker-compose (missing on MacOS)
         if: runner.os == 'macos'
         run: |
+          brew install docker
           brew install colima
           colima start