compute: mark instance autoDelete updatable

[grandmadeb15]

Corrects the MMv1 update metadata for google_compute_instance.boot_disk.auto_delete to match the existing handwritten in-place-update implementation. Adds acceptance-test plan checks confirming that changes continue to update the instance rather than replace it.

release-note:none

[google-cla]

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[grandmadeb15]

@googlebot rescan

[grandmadeb15]

I have added the changelog and accepted the contribution agreement, but don't know how to get it to rescan. Given the rest of the checks passed I am going to mark this ready for review - please let me know if that's wrong I will be happy to fix :)

[github-actions]

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

@ScottSuarez, 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 for commit 1ebadbe:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	1 file changed, 10 insertions(+)
google-beta provider	View Diff	1 file changed, 10 insertions(+)

Test report

Analytics

Total Tests	Passed	Skipped	Affected
1559	1462	95	2

Affected Service Packages

• compute

Learn how VCR tests work

---

Step 1: Replaying Mode

Action taken

Found 2 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit.

Click here to see the affected tests

• TestAccComputeInstanceFromMachineImage_diffProject
• TestAccComputeSecurityPolicy_withPreconfiguredWafConfig

View the replaying VCR build log

---

Step 2: Recording Mode

Recording Mode	Replaying Rerun	Test Name
❌ Error · Log	-	TestAccComputeInstanceFromMachineImage_diffProject
❌ Error · Log	-	TestAccComputeSecurityPolicy_withPreconfiguredWafConfig

Caution

Issues requiring attention before PR completion

🔴 Initial Recording Failed: Some tests failed during the recording step. See the table above for details.

Please address these issues to complete your PR. If you believe these detections are incorrect or unrelated to your change, please raise the concern with your reviewer.

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

@grandmadeb15, @ScottSuarez VCR tests complete for 1ebadbe!

[grandmadeb15]

@googlebot rescan