Remove IP validation for host of on-premise instance

[jharshika]

According to API doc to setup a source representation instance, user can pass the IPv4 address and port for the external server, or the the DNS address for the external server. When user try to pass DNS address in terraform configuration file, they encounter Error: could not parse "host" to IP address.

In admin API, we don't have validation for host of on-premise instances. As of now it is validating that host contain the IP address in terraform. In order to be consistent with admin API and accept DNS address as well, removing the validation function for host.

Release Note Template for Downstream PRs (will be copied)

sql: removed host validation to support IP address and DNS address in host in `google_sql_source_representation_instance` resource

[modular-magician]

Hello! I am a robot. It looks like you are a: Community Contributor Googler Core Contributor. Tests will require approval to run.

@SarahFrench, 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:

Diff report

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

Terraform GA: Diff ( 1 file changed, 4 insertions(+), 5 deletions(-))
Terraform Beta: Diff ( 1 file changed, 4 insertions(+), 5 deletions(-))

[modular-magician]

Tests analytics

Total tests: 3144
Passed tests 2823
Skipped tests: 316
Affected tests: 5

Action taken

Found 5 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit. Click here to see the affected tests

TestAccAlloydbInstance_clientConnectionConfig_update|TestAccAlloydbCluster_secondaryClusterMandatoryFields|TestAccAlloydbBackup_createBackupWithMandatoryFields|TestAccAlloydbCluster_secondaryClusterDefinedSecondaryConfigButMissingClusterTypeSecondary|TestAccAlloydbBackup_alloydbBackupFullExample

Get to know how VCR tests work

[modular-magician]

$\textcolor{green}{\textsf{Tests passed during RECORDING mode:}}$
TestAccAlloydbInstance_clientConnectionConfig_update[Debug log]
TestAccAlloydbCluster_secondaryClusterMandatoryFields[Debug log]
TestAccAlloydbBackup_createBackupWithMandatoryFields[Debug log]
TestAccAlloydbCluster_secondaryClusterDefinedSecondaryConfigButMissingClusterTypeSecondary[Debug log]
TestAccAlloydbBackup_alloydbBackupFullExample[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

[SarahFrench]

The reason for removing the validation makes sense to me, but I recommend improving the field's description before merging this change

[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.

Terraform GA: Diff ( 2 files changed, 5 insertions(+), 6 deletions(-))
Terraform Beta: Diff ( 2 files changed, 5 insertions(+), 6 deletions(-))

[modular-magician]

Tests analytics

Total tests: 3144
Passed tests 2824
Skipped tests: 315
Affected tests: 5

Action taken

Found 5 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit. Click here to see the affected tests

TestAccAlloydbBackup_createBackupWithMandatoryFields|TestAccAlloydbBackup_alloydbBackupFullExample|TestAccAlloydbCluster_secondaryClusterDefinedSecondaryConfigButMissingClusterTypeSecondary|TestAccAlloydbCluster_secondaryClusterMandatoryFields|TestAccCloudRunService_cloudRunServiceSqlExample

Get to know how VCR tests work

[modular-magician]

$\textcolor{green}{\textsf{Tests passed during RECORDING mode:}}$
TestAccAlloydbBackup_createBackupWithMandatoryFields[Debug log]

Rerun these tests in REPLAYING mode to catch issues

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

---

$\textcolor{red}{\textsf{Tests failed during RECORDING mode:}}$
TestAccAlloydbBackup_alloydbBackupFullExample[Error message] [Debug log]
TestAccAlloydbCluster_secondaryClusterDefinedSecondaryConfigButMissingClusterTypeSecondary[Error message] [Debug log]
TestAccAlloydbCluster_secondaryClusterMandatoryFields[Error message] [Debug log]
TestAccCloudRunService_cloudRunServiceSqlExample[Error message] [Debug log]

$\textcolor{red}{\textsf{Please fix these to complete your PR.}}$
View the build log or the debug log for each test

[SarahFrench]

Note: Test failures are unrelated

The main branch is currently locked but I'll merge this PR once I'm able to.