Revert google_dns_record_set to previous implementation

[modular-magician]

Fixes #9257
Fixes #9112
Fixes #9416

This PR reverts the resource to the original handwritten version that uses the DNS client library from the MM-generated version that used the new API.

Deviations from the old handwritten version include:

• More tests
• ttl was made optional in the previous iteration, I am keeping it optional for backwards-compatibility
• reset the resource ID after updating. The type field can be updated which is a part of the ID. This allows one of the newer tests to import correctly

Release Note Template for Downstream PRs (will be copied)

dns: fixed an issue in `google_dns_record_set` where creating the resource would result in an 409 error

dns: fixed an issue in `google_dns_record_set` where `rrdatas` could not be updated

Derived from GoogleCloudPlatform/magic-modules#5191

[github-actions]

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