Bugfix: Use API's default value for enableEndpointIndependentMapping

[shijeesh-ns]

Instead of using a hardcode default of false for enableEndpointIndependentMapping, use the default value from the API.

hashicorp/terraform-provider-google#10547

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

• [X ] 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).
• [X ] 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).
• Generated Terraform providers, and ran make test and make lint in the generated providers to ensure it passes unit and linter tests.
• Ran relevant acceptance tests using my own Google Cloud project and credentials (If the acceptance tests do not yet pass or you are unable to run them, please let your reviewer know).
• [X ] Read Write release notes before writing my release note below.

Release Note Template for Downstream PRs (will be copied)

compute: used APIs default value for field `enable_endpoint_independent_mapping` in resource `google_compute_router_nat`

[modular-magician]

Hello! I am a robot. It looks like you are a community contributor. @zli82016, a repository maintainer, has been assigned to review your changes. If you have not received review feedback within 2 business days, please leave a comment on this PR asking them to take a look.

You can help make sure that review is quick by doing a self-review and by running impacted tests locally.

[modular-magician]

Hi there, I'm the Modular magician. I've detected the following information about your changes:

Breaking Change(s) Detected

The following breaking change(s) were detected within your pull request.

• Field enable_endpoint_independent_mapping default value changed from true to on google_compute_router_nat - reference

If you believe this detection to be incorrect please raise the concern with your reviewer. If you intend to make this change you will need to wait for a major release window. An override-breaking-change label can be added to allow merging.

Diff report

Your PR generated some diffs in downstreams - here they are.

Terraform GA: Diff ( 2 files changed, 5 insertions(+), 5 deletions(-))
Terraform Beta: Diff ( 2 files changed, 5 insertions(+), 5 deletions(-))
TF Conversion: Diff ( 2 files changed, 3 insertions(+), 3 deletions(-))

[modular-magician]

Tests analytics

Total tests: 2923
Passed tests 2612
Skipped tests: 305
Affected tests: 6

Action taken

Found 6 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit. Click here to see the affected tests

TestAccComputeRouterNat_withNatIpsAndDrainNatIps|TestAccComputeRouterNat_withManualIpAndSubnetConfiguration|TestAccComputeRouterNat_removeLogConfig|TestAccComputeRouterNat_update|TestAccComputeRouterNat_basic|TestAccDataSourceGoogleComputeRouterNat_basic

Get to know how VCR tests work

[modular-magician]

$\textcolor{green}{\textsf{Tests passed during RECORDING mode:}}$
TestAccComputeRouterNat_withNatIpsAndDrainNatIps[Debug log]
TestAccComputeRouterNat_withManualIpAndSubnetConfiguration[Debug log]
TestAccComputeRouterNat_removeLogConfig[Debug log]
TestAccComputeRouterNat_update[Debug log]
TestAccComputeRouterNat_basic[Debug log]
TestAccDataSourceGoogleComputeRouterNat_basic[Debug log]

Rerun these tests in REPLAYING mode to catch issues

$\textcolor{green}{\textsf{No issues found for passed tests after REPLAYING rerun.}}$

---

$\textcolor{green}{\textsf{All tests passed!}}$
View the build log or the debug log for each test

[zli82016]

Hello, @shijeesh-ns , thanks for making the change. Can you please create a PR to add the fix to the 5.0.0 release guide in the main branch? https://github.com/GoogleCloudPlatform/magic-modules/blob/main/mmv1/third_party/terraform/website/docs/guides/version_5_upgrade.html.markdown

Example: #8529

[shijeesh-ns]

Hello, @shijeesh-ns , thanks for making the change. Can you please create a PR to add the fix to the 5.0.0 release guide in the main branch? https://github.com/GoogleCloudPlatform/magic-modules/blob/main/mmv1/third_party/terraform/website/docs/guides/version_5_upgrade.html.markdown

Example: #8529

Created hashicorp/terraform-provider-google#15477 to track the 5.0.0 release guide updation

[zli82016]

hashicorp/terraform-provider-google#15477

Thanks for creating the issue. Please make sure to update the 5.0.0 release guide soon.

[zli82016]

LGTM