Fix typo 'bar]' to 'bar' in RunService samples and test fixtures

[eugenenuke]

BRIEF Change description

This PR corrects a pervasive typo in RunService environment variable values, where bar] was used instead of bar.

The fix updates:

• Active KCC samples in config/samples/resources/runservice and config/samples/resources/computeregionnetworkendpointgroup.
• Integration test fixtures in pkg/test/resourcefixture/testdata/basic/.
• Generated documentation in scripts/generate-google3-docs/.

WHY do we need this change?

To ensure documentation accuracy and clean up confusing sample values for users.

Special notes for your reviewer:

Golden logs (_http.log) were updated using mockgcp to reflect the change in the requested environment variable values.

Does this PR add something which needs to be 'release noted'?

NONE

Additional documentation e.g., references, usage docs, etc.:

NONE

Tests you have done

• Run make ready-pr to ensure this PR is ready for review.
• Perform necessary E2E testing for changed resources.
• Verified passing tests for runservicebasic and cloudruncomputeregionnetworkendpointgroup against mockgcp.

[eugenenuke]

/cc @gemmahou

[gemmahou]

I noticed that there are lots of unrelated doc updates in this PR, due to the fact that our g3 reference doc is out-dated, and "generate-google3-docs" updates them here.

cc @xiaoweim, @maqiuyujoyce

[eugenenuke]

Do you want me to split the PR in two? E.g. a typo fix + a doc update?

Another CI test can be added to make sure that the docs are always up-to-date. I can check if I can handle that in a separate PR. WDYT?

[gemmahou]

Do you want me to split the PR in two? E.g. a typo fix + a doc update?

Another CI test can be added to make sure that the docs are always up-to-date. I can check if I can handle that in a separate PR. WDYT?

I believe @xiaoweim is taking care of the doc updates. Can we hold this PR until that's done?

[xiaoweim]

Yes, this is the PR #6856 6856 to update the reference documents.

[gemmahou]

Can we rebase with master and resolve the merge conflict since #5856 has been merged?

[eugenenuke]

Can we rebase with master and resolve the merge conflict since #5856 has been merged?

done

[gemmahou]

/lgtm

[eugenenuke]

/assign @maqiuyujoyce

[maqiuyujoyce]

/lgtm

[google-oss-prow]

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This pull-request has been approved by: gemmahou, maqiuyujoyce

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