Add a flag to use patch when creating a service networking connection fails

[zli82016]

fixes hashicorp/terraform-provider-google#16697

In provider 4.x, resource google_service_networking_connection is soft deleted with removePeering method.
After upgrading to 5.x, creating the resource google_service_networking_connection in the same network and different peering ranges fails. When the field update_on_creation_fail is set to true, the creation will succeed by calling PATCH method after creation fails.

one pager doc is here

Release Note Template for Downstream PRs (will be copied)

servicenetworking: added `update_on_creation_fail` field to `google_service_networking_connection` resource. When it is set to true, enforce an update of the reserved peering ranges on the existing service networking connection in case of a new connection creation failure.

[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 ( 3 files changed, 110 insertions(+), 1 deletion(-))
google-beta provider: Diff ( 3 files changed, 110 insertions(+), 1 deletion(-))

[modular-magician]

Tests analytics

Total tests: 8
Passed tests: 7
Skipped tests: 0
Affected tests: 1

Click here to see the affected service packages

• servicenetworking

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

• TestAccServiceNetworkingConnection_updateOnCreationFail

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[modular-magician]

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

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

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$\textcolor{green}{\textsf{All tests passed!}}$

View the build log or the debug log for each test

[c2thorn]

LGTM - thanks for creating a separate PR for this