google_dns_managed_zone: add zone ID attribute

[seh]

In the data source for DNS managed zones, include a new "managed_zone_id" attribute reporting the zone's ID, matching the corresponding google_dns_managed_zone resource's output attribute with the same name.

While we're here, revise the order in which we transcribe the fields from the fetched object to the data source's attributes to match the declaration order in the schema.

Supersedes hashicorp/terraform-provider-google#12301.
Relates to #6186.
Fixes hashicorp/terraform-provider-google#7128.

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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.
• 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)

dns: added `managed_zone_id` attribute to `google_dns_managed_zone` data source

[modular-magician]

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[seh]

I found the GNUmakefile file, but could not find the Make targets named "test," "lint," or "testacc." In which file are those defined?

[modular-magician]

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

Diff report:

Terraform GA: Diff ( 2 files changed, 14 insertions(+), 6 deletions(-))
Terraform Beta: Diff ( 2 files changed, 14 insertions(+), 6 deletions(-))
TF Validator: Diff ( 2 files changed, 3 insertions(+), 3 deletions(-))

[modular-magician]

Tests analytics

Total tests: 2129
Passed tests 1893
Skipped tests: 227
Failed tests: 9

Action taken

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

TestAccPrivatecaCertificateAuthority_privatecaCertificateAuthoritySubordinateExample|TestAccComputeInstance_networkPerformanceConfig|TestAccComputeInstance_soleTenantNodeAffinities|TestAccComputeGlobalForwardingRule_internalLoadBalancing|TestAccCloudfunctions2function_cloudfunctions2BasicAuditlogsExample|TestAccCloudfunctions2function_cloudfunctions2BasicGcsExample|TestAccCloudFunctions2Function_fullUpdate|TestAccCGCSnippet_eventarcWorkflowsExample|TestAccCloudRunService_cloudRunServiceStaticOutboundExample

[modular-magician]

Tests passed during RECORDING mode:
TestAccPrivatecaCertificateAuthority_privatecaCertificateAuthoritySubordinateExample[view]
TestAccCloudfunctions2function_cloudfunctions2BasicAuditlogsExample[view]
TestAccCloudfunctions2function_cloudfunctions2BasicGcsExample[view]
TestAccCloudFunctions2Function_fullUpdate[view]
TestAccCGCSnippet_eventarcWorkflowsExample[view]

Tests failed during RECORDING mode:
TestAccComputeInstance_networkPerformanceConfig[view]
TestAccComputeInstance_soleTenantNodeAffinities[view]
TestAccComputeGlobalForwardingRule_internalLoadBalancing[view]
TestAccCloudRunService_cloudRunServiceStaticOutboundExample[view]

Please fix these to complete your PR
View the build log or the debug log for each test

[seh]

I lack permission to view the test output files. The test names don't sound related to this change, but I won't discount the possibility that I broke something.

[megan07]

LGTM! Thank you!