Upgrade to Go 1.20

[SarahFrench]

This PR upgrades the Google providers (related systems) from Go 1.19 to Go 1.20.

Using Go 1.20 is needed to enable this work : hashicorp/terraform-provider-google#16244

Here's are PRs for the previous upgrade process:

• Upgrade Go 1.19 #7645
• Upgrade Go 1.19 for breaking-change-detector and missing-test-detector #7663

Release Note Template for Downstream PRs (will be copied)

[SarahFrench]

Check is failing:

Check for go in path...
go1.19.13 is installed, but go 1.20 or later is required. See https://golang.org/doc/install for information on installing it.

[ScottSuarez]

Can we separate the PR to be one that updates the container and a second that updates the assets that use the container?

We can check in the former then the latter

[SarahFrench]

I've removed changes to Dockerfiles from this PR and they're now in this separate PR: #9530

[SarahFrench]

I can see that the new container image made by merging this PR is now in container registry, so I can test this PR with /gcbrun

[SarahFrench]

/gcbrun

[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, 1 insertion(+), 1 deletion(-))
Terraform Beta: Diff ( 1 file changed, 1 insertion(+), 1 deletion(-))

[modular-magician]

Tests analytics

Total tests: 3254
Passed tests 2921
Skipped tests: 331
Affected tests: 2

Action taken

Found 2 affected test(s) by replaying old test recordings. Starting RECORDING based on the most recent commit. Click here to see the affected tests

TestAccGKEHub2Fleet_gkehubFleetBasicExample_update|TestAccSpannerInstanceIamPolicy

Get to know how VCR tests work

[modular-magician]

$\textcolor{green}{\textsf{Tests passed during RECORDING mode:}}$
TestAccGKEHub2Fleet_gkehubFleetBasicExample_update[Debug log]
TestAccSpannerInstanceIamPolicy[Debug log]

Rerun these tests in REPLAYING mode to catch issues

$\textcolor{red}{\textsf{Tests failed when rerunning REPLAYING mode:}}$
TestAccGKEHub2Fleet_gkehubFleetBasicExample_update[Error message] [Debug log]

Tests failed due to non-determinism or randomness when the VCR replayed the response after the HTTP request was made.

Please fix these to complete your PR. If you believe these test failures to be incorrect or unrelated to your change, or if you have any questions, please raise the concern with your reviewer.

---

$\textcolor{red}{\textsf{Errors occurred during RECORDING mode. Please fix them to complete your PR.}}$
View the build log or the debug log for each test

[SarahFrench]

The test failure above is unrelated and is addressed by #9552