Add Terraform support for Cloud Run v2 scaling controls

[manalikumar]

Expose CPU and Concurrency utilization scaling thresholds under the scaling block. Fixes b/448515376

cloudrun: added `cpu_utilization` and `concurrency_utilization` fields to `google_cloud_run_v2_service` revision scaling configuration

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[github-actions]

Googlers: For automatic test runs see go/terraform-auto-test-runs.

@shuyama1, 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.

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[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes for commit 0369d26:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	4 files changed, 141 insertions(+)
google-beta provider	View Diff	4 files changed, 141 insertions(+)
terraform-google-conversion	View Diff	1 file changed, 22 insertions(+)
Open in Cloud Shell	View Diff	4 files changed, 120 insertions(+)

Test report

Analytics

Total Tests	Passed	Skipped	Affected
93	83	9	1

Affected Service Packages

• cloudrunv2

Learn how VCR tests work

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Step 1: Replaying Mode

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

• TestAccCloudRunV2Service_cloudrunv2ServiceScalingControlsExample

View the replaying VCR build log

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Step 2: Recording Mode

Recording Mode	Replaying Rerun	Test Name
✅ Log	✅	TestAccCloudRunV2Service_cloudrunv2ServiceScalingControlsExample

🟢 All tests passed!

View the recording VCR build log or the debug logs folder for detailed results.

@manalikumar, @zhengruan, @shuyama1 VCR tests complete for 0369d26!