switch to docker compose (#2771)

docker-compose is not available by default anymore on `ubuntu-latest`
[details here]( actions/runner-images#9692)

.github/workflows/CI.yml

@@ -29,7 +29,7 @@ jobs:
       run: dotnet build Build.csproj -c Release /p:CI=true
     - name: Start Redis Services (docker-compose)
       working-directory: ./tests/RedisConfigs
-      run: docker-compose -f docker-compose.yml up -d
+      run: docker compose -f docker-compose.yml up -d
     - name: StackExchange.Redis.Tests
       run: dotnet test tests/StackExchange.Redis.Tests/StackExchange.Redis.Tests.csproj -c Release --logger trx --logger GitHubActions --results-directory ./test-results/ /p:CI=true
     - uses: dorny/test-reporter@v1