Increase range of CloudSQL Query Insights string length & plans per minute to match Enterprise Plus limits

[jbuck]

After following the docs to increase the CloudSQL Query Insights string length and plan per minute limits we found that the Terraform provider's validation function hasn't been increased to match the new-ish Enterprise Plus limits. This PR modifies the validation function to account for the Enterprise Plus limits.

I see in the Google docs that this is marked as a preview feature. I'm not sure if that means these increased limits should be a beta-only change, or if it's okay to have it in both. I also wonder if changing the validation function based on the edition of the instance is a better idea?

Anyways, let me know what you think and I'm happy to update this PR to match

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sql: Increased `settings.insights_config.query_string_length` and `settings.insights_config.query_string_length` limits for Enterprise Plus edition `sql_database_instance` resource.

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[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.

google provider: Diff ( 1 file changed, 4 insertions(+), 4 deletions(-))
google-beta provider: Diff ( 1 file changed, 4 insertions(+), 4 deletions(-))

Missing test report

Your PR includes resource fields which are not covered by any test.

Resource: google_sql_database_instance (174 total tests)
Please add an acceptance test which includes these fields. The test should include the following:

resource "google_sql_database_instance" "primary" {
  settings {
    insights_config {
      query_plans_per_minute = # value needed
      query_string_length    = # value needed
    }
  }
}

[modular-magician]

Tests analytics

Total tests: 107
Passed tests: 85
Skipped tests: 21
Affected tests: 1

Click here to see the affected service packages

• sql

Action taken

Found 1 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit. Click here to see the affected tests

• TestAccSqlUser_password_wo

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[modular-magician]

🔴 Tests failed during RECORDING mode:
TestAccSqlUser_password_wo [Error message] [Debug log]

🔴 Errors occurred during RECORDING mode. Please fix them to complete your PR.

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