Set CLOUDSDK_PYTHON env var even on failure
Set CLOUDSDK_PYTHON env var even on failure

This step was getting skipped if the build step failed, which caused the test step to fail on the integration tests that were built.

firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk,firebase/firebase-cpp-sdk