chore: add customHostConfig to instance

[ericzzzzzzz]

Release Note Template for Downstream PRs (will be copied)

See Write release notes for guidance.

securesourcemanager: added `private_config.custom_host_config` field to `google_secure_source_manager_instance` resource (beta)

[github-actions]

Googlers: For automatic test runs see go/terraform-auto-test-runs.

@roaks3, 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.

google provider: Diff ( 4 files changed, 382 insertions(+))
google-beta provider: Diff ( 4 files changed, 382 insertions(+))
terraform-google-conversion: Diff ( 5 files changed, 236 insertions(+))
Open in Cloud Shell: Diff ( 4 files changed, 187 insertions(+))

[modular-magician]

Tests analytics

Total tests: 23
Passed tests: 22
Skipped tests: 0
Affected tests: 1

Click here to see the affected service packages

• securesourcemanager

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

• TestAccSecureSourceManagerInstance_secureSourceManagerInstancePrivateCustomHostExample

Get to know how VCR tests work

[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 ( 4 files changed, 382 insertions(+))
google-beta provider: Diff ( 4 files changed, 382 insertions(+))
terraform-google-conversion: Diff ( 5 files changed, 236 insertions(+))
Open in Cloud Shell: Diff ( 4 files changed, 187 insertions(+))

[modular-magician]

Tests analytics

Total tests: 23
Passed tests: 22
Skipped tests: 0
Affected tests: 1

Click here to see the affected service packages

• securesourcemanager

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

• TestAccSecureSourceManagerInstance_secureSourceManagerInstancePrivateCustomHostExample

Get to know how VCR tests work

[modular-magician]

🟢 Tests passed during RECORDING mode:
TestAccSecureSourceManagerInstance_secureSourceManagerInstancePrivateCustomHostExample [Debug log]

🟢 No issues found for passed tests after REPLAYING rerun.

---

🟢 All tests passed!

View the build log or the debug log for each test

[modular-magician]

🟢 Tests passed during RECORDING mode:
TestAccSecureSourceManagerInstance_secureSourceManagerInstancePrivateCustomHostExample [Debug log]

🟢 No issues found for passed tests after REPLAYING rerun.

---

🟢 All tests passed!

View the build log or the debug log for each test

[zli82016]

Failed terraform-google-conversion-test-integration is unrelated and will be fixed in #16729