deprecated existing beta fields in TPG

[venkykuberan]

If this PR is for Terraform, I acknowledge that I have:

• Searched through the issue tracker for an open issue that this either resolves or contributes to, commented on it to claim it, and written "fixes {url}" or "part of {url}" in this PR description. If there were no relevant open issues, I opened one and commented that I would like to work on it (not necessary for very small changes).
• Generated Terraform, and ran make test and make lint to ensure it passes unit and linter tests.
• Ensured that all new fields I added that can be set by a user appear in at least one example (for generated resources) or third_party test (for handwritten resources or update tests).
• Ran relevant acceptance tests (If the acceptance tests do not yet pass or you are unable to run them, please let your reviewer know).
• Read the Release Notes Guide before writing my release note below.

Release Note Template for Downstream PRs (will be copied)

compute: deprecated `min_ready_sec` in `google_compute_region_instance_group_manager` & `google_compute_instance_group_manager` in GA

compute: deprecated `distribution_policy_target_shape` in `google_compute_region_instance_group_manager` in GA

container: deprecated `pod_security_policy_config` field on resource `google_container_cluster` in GA

fixes hashicorp/terraform-provider-google#8709

[modular-magician]

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

Diff report:

Terraform GA: Diff ( 3 files changed, 4 insertions(+))
Terraform Beta: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))

[modular-magician]

I have triggered VCR tests based on this PR's diffs. See the results here: "https://ci-oss.hashicorp.engineering/viewQueued.html?itemId=179681"

[modular-magician]

I have triggered VCR tests in RECORDING mode for the following tests that failed during VCR: TestAccNotebooksInstance_notebookInstanceFullExample You can view the result here: "https://ci-oss.hashicorp.engineering/viewQueued.html?itemId=179711"

[modular-magician]

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

[slevenick]

Can we change these messages to something like:

"This attribute is currently in beta and will be removed from the google provider. Please use the google-beta provider to continue using this attribute."

[modular-magician]

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

Diff report:

Terraform GA: Diff ( 3 files changed, 4 insertions(+))

[modular-magician]

I have triggered VCR tests based on this PR's diffs. See the results here: "https://ci-oss.hashicorp.engineering/viewQueued.html?itemId=181878"