Marked cpu_cfs_quota as Computed

[melinath]

Resolved hashicorp/terraform-provider-google#9485.

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Release Note Template for Downstream PRs (will be copied)

container: resolved permadiff in node kubelet_configs (beta)

[modular-magician]

Hi! I'm the modular magician. Your PR generated some diffs in downstreams - here they are.

Diff report:

Terraform Beta: Diff ( 3 files changed, 4 insertions(+), 2 deletions(-))

[modular-magician]

I have triggered VCR tests in RECORDING mode for the following tests that failed during VCR: TestAccContainerNodePool_withGPU|TestAccTags You can view the result here: https://ci-oss.hashicorp.engineering/viewQueued.html?itemId=194846

[modular-magician]

Tests failed during RECORDING mode: TestAccContainerNodePool_withGPU Please fix these to complete your PR

[melinath]

This doesn't seem to fix the issue