Add custom flattener for diagflowcx agent git integration settings field

[trodge]

Behavior of this field seems to have changed since #9078 was merged.

fixes hashicorp/terraform-provider-google#16434

Release Note Template for Downstream PRs (will be copied)

dialogflowcx: fixed a permadiff in the `git_integration_settings` field of `google_diagflow_cx_agent`

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

[modular-magician]

Tests analytics

Total tests: 3268
Passed tests 2934
Skipped tests: 334
Affected tests: 0

$\textcolor{green}{\textsf{All tests passed in REPLAYING mode.}}$
View the build log

[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, 7 insertions(+), 30 deletions(-))
Terraform Beta: Diff ( 1 file changed, 7 insertions(+), 30 deletions(-))

[modular-magician]

Tests analytics

Total tests: 3290
Passed tests 2952
Skipped tests: 337
Affected tests: 1

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

TestAccDataSourceGoogleServiceAccountJwt

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[modular-magician]

$\textcolor{green}{\textsf{Tests passed during RECORDING mode:}}$
TestAccDataSourceGoogleServiceAccountJwt[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

[trodge]

The test passes locally. I'm not sure why it doesn't fail in VCR replaying mode.

[mmurakowski-verily]

Thanks for fixing. My lesson from this is "don't do automation for a thing that's new" :(

[melinath]

Small tweak to suggest to improve readability, otherwise LGTM & makes sense. I think VCR is probably still using the previous API response, so it still hasn't detected that this is broken. Attn @shuyama1 in terms of thinking about how we might be able to catch and/or re-record cases like this.

[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, 7 insertions(+), 29 deletions(-))
Terraform Beta: Diff ( 1 file changed, 7 insertions(+), 29 deletions(-))

[modular-magician]

Tests analytics

Total tests: 3292
Passed tests 2955
Skipped tests: 337
Affected tests: 0

$\textcolor{green}{\textsf{All tests passed in REPLAYING mode.}}$
View the build log