explicitly set the docker sdk api version to use in tests

.github/workflows/test.yml

@@ -138,6 +138,7 @@ jobs:
         KOSLI_JIRA_API_TOKEN: ${{ secrets.jira_api_token }}
         INTEGRATION_TEST_AZURE_CLIENT_SECRET: ${{ secrets.azure_client_secret }}
         INTEGRATION_TEST_AZURE_CLIENT_ID: ${{ secrets.azure_client_id }}
+        DOCKER_API_VERSION: "1.45"
       run: |
         # some tests use git operations, therefore the git author on the CI VM needs to be set
         git config --global user.name "John Doe"