Etag support for ACM service perimeters

[coder-221]

Release Note Template for Downstream PRs (will be copied)

See Write release notes for guidance.

accesscontextmanager: added `etag` to `google_access_context_manager_service_perimeter` and `google_access_context_manager_service_perimeters`

[github-actions]

Hello! I am a robot. Tests will require approval from a repository maintainer to run.

@zli82016, a repository maintainer, has been assigned to review your changes. If you have not received review feedback within 2 business days, please leave a comment on this PR asking them to take a look.

You can help make sure that review is quick by doing a self-review and by running impacted tests locally.

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Diff report

Your PR generated some diffs in downstreams - here they are.

google provider: Diff ( 5 files changed, 74 insertions(+))
google-beta provider: Diff ( 5 files changed, 74 insertions(+))
terraform-google-conversion: Diff ( 2 files changed, 21 insertions(+))

[modular-magician]

Tests analytics

Total tests: 3
Passed tests: 2
Skipped tests: 0
Affected tests: 1

Click here to see the affected service packages

• accesscontextmanager

Action taken

Found 1 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit. Click here to see the affected tests

• TestAccAccessContextManager

Get to know how VCR tests work

[modular-magician]

🟢 Tests passed during RECORDING mode:
TestAccAccessContextManager [Debug log]

🟢 No issues found for passed tests after REPLAYING rerun.

---

🟢 All tests passed!

View the build log or the debug log for each test

[zli82016]

LGTM