functions/ci_cd: make region tags consistent across languages (#1334)
functions/ci_cd: make region tags consistent across languages (#1334)

**Motivation:** we're adding [Java](https://github.com/GoogleCloudPlatform/java-docs-samples/pull/2615) and [Python](https://github.com/GoogleCloudPlatform/python-docs-samples/pull/3324) versions of this sample.

Related bug: b/153295209
GoogleCloudPlatform/golang-samples,GoogleCloudPlatform/golang-samples,GoogleCloudPlatform/golang-samples