[VBLOCKS-1983] Feat: gcloud deploy

[kpchoy]

Submission Checklist

• [ ] The CHANGELOG.md reflects any feature, bug fixes, or known issues made in the source code
• [ ] New unit tests and integration tests have beed added
• [x] Code coverage is more or equal to the previous coverage
• [x] A visual inspection of the Files changed tab was made prior to submitting the pull request ensuring the style guide was followed
• [ ] CI pipeline is green
• [ ] Included screenshot if necessary

Description

VBLOCKS-1983

GCloud deploy configs

Breakdown

• [Bulleted summary of changes]
• [eg. Updated doc]
• [eg. Added precondition to class]

Validation

• [Bulleted summary of validation steps including local and CI pipeline]
• [eg. Added new test]
• [eg. Manually tested with both app and server]

Additional Notes

[Any additional comments, notes, or information relevant to reviewers.]

Contributing to Twilio

All third-party contributors acknowledge that any contributions they provide will be made under the same open-source license that the open-source project is provided under.

• [x] I acknowledge that all my contributions will be made under the project's license.

[kpchoy]

@charliesantos after adding empty build script I get the following error: https://console.cloud.google.com/cloud-build/builds;region=us-west2/5b29b8ba-f702-41dc-b69f-38b8512017cf?project=vblocks-reference-server