Handled async operation for Folder deletion

[zli82016]

Fixes https://b.corp.google.com/issues/249994316

V2 API was migrated to V3 API for google_folder resource. With V3 API, the DELETE method returns an operation instead of the resource in V2 API. It is safe to handle the operation for DELETE method.

https://cloud.google.com/resource-manager/reference/rest/v2/folders/delete#response-body
https://cloud.google.com/resource-manager/reference/rest/v3/folders/delete#response-body

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Release Note Template for Downstream PRs (will be copied)

cloudplatform: handled async operation for `google_folder` deletion

[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 ( 1 file changed, 14 insertions(+), 1 deletion(-))
Terraform Beta: Diff ( 1 file changed, 14 insertions(+), 1 deletion(-))
TF Validator: Diff ( 2 files changed, 3 insertions(+), 3 deletions(-))

[modular-magician]

Tests analytics

Total tests: 2356
Passed tests 2106
Skipped tests: 247
Failed tests: 3

Action taken

Triggering VCR tests in RECORDING mode for the tests that failed during VCR. Click here to see the failed tests

TestAccContainerCluster_withInvalidGatewayApiConfigChannel|TestAccLoggingBucketConfigProject_cmekSettings|TestAccFirebaserulesRelease_BasicRelease

[modular-magician]

Tests passed during RECORDING mode:
TestAccContainerCluster_withInvalidGatewayApiConfigChannel[Debug log]
TestAccLoggingBucketConfigProject_cmekSettings[Debug log]
TestAccFirebaserulesRelease_BasicRelease[Debug log]

All tests passed
View the build log or the debug log for each test