ci: require green integration tests to publish snapshot

[alexeagle]

Now looks like https://circleci.com/workflow-run/921ffc90-cff6-4f48-97df-740d60d5bf2b

[ngbot]

I see that you just added the PR action: merge label, but the following checks are still failing:
     status "ci/circleci: test" is failing
     status "ci/circleci: build-packages-dist" is pending
     status "continuous-integration/travis-ci/push" is pending
     status "code-review/pullapprove" is pending
     status "continuous-integration/travis-ci/pr" is pending
     1 pending code review

If you want your PR to be merged, it has to pass all the CI checks.

If you can't get the PR to a green state due to flakes or broken master, please try rebasing to master and/or restarting the CI job. If that fails and you believe that the issue is not due to your change, please contact the caretaker and ask for help.

[angular-automatic-lock-bot]

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