fix(container_node_pool): support fuse csi driver for autopilot cluster

[toVersus]

Fixes: hashicorp/terraform-provider-google#15817

This PR relaxes the validation and allows to explicitly enable FUSE CSI driver on GKE Autopilot clusters.

Release Note Template for Downstream PRs (will be copied)

container: allow setting `addons_config.gcs_fuse_csi_driver_config` on `google_container_cluster` with `enable_autopilot: true`.

[modular-magician]

Hello! I am a robot. It looks like you are a: Community Contributor Googler Core Contributor. Tests will require approval to run.

@NickElliot, 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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[toVersus]

If additional test cases are required to cover scenarios involving GKE Autopilot clusters and the FUSE CSI driver addon, I will include a dedicated test case for this change.

[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.

Terraform GA: Diff ( 2 files changed, 9 insertions(+), 8 deletions(-))
Terraform Beta: Diff ( 2 files changed, 9 insertions(+), 8 deletions(-))

[modular-magician]

Tests analytics

Total tests: 3079
Passed tests 2780
Skipped tests: 299
Affected tests: 0

$\textcolor{green}{\textsf{All tests passed in REPLAYING mode.}}$
View the build log

[NickElliot]

This should be fine without a new test case -- thanks for the update!