[8.x](backport #40918) x-pack/metricbeat/module/gcp: Override GCP API endpoint in metric client

mergify[bot] commented 1 month ago

Proposed commit message

The GCP metric client does not currently allow overriding with a custom endpoint, which is necessary for testing against a mock GCP API endpoint. Resolved this issue by implementing a check to determine if an endpoint is specified in the GCP configuration, and subsequently overriding the ClientOption with that endpoint.

Checklist

[X] My code follows the style guidelines of this project
[ ] I have commented my code, particularly in hard-to-understand areas
[X] I have made corresponding changes to the documentation
[X] I have made corresponding change to the default configuration files
[X] I have added tests that prove my fix is effective or that my feature works
[X] I have added an entry in CHANGELOG.next.asciidoc or CHANGELOG-developer.next.asciidoc.

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Related issues

Closes #40848

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This is an automatic backport of pull request #40918 done by Mergify.

botelastic[bot] commented 1 month ago

This pull request doesn't have a Team:<team> label.

mergify[bot] commented 1 month ago

This pull request has not been merged yet. Could you please review and merge it @Linu-Elias? 🙏

elastic / beats