feat(container): Add GKE node pool sandbox type MICROVM

[noahlwest]

Adds support for the new MicroVM sandbox type to google_container_cluster and google_container_node_pool under sandbox_config.type.

container: added `MICROVM` support to `sandbox_config.type` in `google_container_cluster` and `google_container_node_pool`

[github-actions]

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

@rileykarson, 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 18420a1:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	3 files changed, 74 insertions(+), 1 deletion(-)
google-beta provider	View Diff	3 files changed, 74 insertions(+), 1 deletion(-)
terraform-google-conversion	View Diff	2 files changed, 4 insertions(+), 1 deletion(-)

Test report

Analytics

Total Tests	Passed	Skipped	Affected
321	305	15	1

Affected Service Packages

• container

Learn how VCR tests work

---

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

• TestAccContainerNodePool_withSandboxConfigMicroVM

View the replaying VCR build log

---

Step 2: Recording Mode

Recording Mode	Replaying Rerun	Test Name
❌ Error · Log	-	TestAccContainerNodePool_withSandboxConfigMicroVM

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.

@noahlwest, @rileykarson VCR tests complete for 18420a1!

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes for commit b7ae999:

Diff report

Your PR generated the following diffs in downstream repositories:

Repository	Diff Link	Changes
google provider	View Diff	3 files changed, 74 insertions(+), 1 deletion(-)
google-beta provider	View Diff	3 files changed, 74 insertions(+), 1 deletion(-)
terraform-google-conversion	View Diff	2 files changed, 4 insertions(+), 1 deletion(-)

Test report

Analytics

Total Tests	Passed	Skipped	Affected
321	305	15	1

Affected Service Packages

• container

Learn how VCR tests work

---

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

• TestAccContainerNodePool_withSandboxConfigMicroVM

View the replaying VCR build log

---

Step 2: Recording Mode

Recording Mode	Replaying Rerun	Test Name
❌ Error · Log	-	TestAccContainerNodePool_withSandboxConfigMicroVM

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.

@noahlwest, @rileykarson VCR tests complete for b7ae999!