In the scenario test, submitting request in a fixed interval, exposing more error type

[gongmax]

What type of PR is this?

Uncomment only one /kind <> line, press enter to put that in a new line, and remove leading whitespace from that line:

/kind breaking
/kind bug
/kind cleanup
/kind documentation

/kind feature

/kind hotfix
/kind release

What this PR does / Why we need it:
In the scenario test, submitting request in a fixed interval so we can get stable and predictable traffic during tests. Also expose more error type to help triage.

Which issue(s) this PR fixes:

Closes #

Special notes for your reviewer:

[agones-bot]

Build Failed 😱

Build Id: 556dd304-7efe-4bac-be92-64d83048bd77

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[agones-bot]

Build Succeeded 👏

Build Id: fc053f5c-1db0-48a4-8ec4-31f9b0838ec9

The following development artifacts have been built, and will exist for the next 30 days:

• image: us-docker.pkg.dev/agones-images/ci/agones-controller:1.36.0-dev-d171506-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.36.0-dev-d171506-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.36.0-dev-d171506-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.36.0-dev-d171506-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.36.0-dev-d171506-amd64
• Linux C++ SDK (build): agonessdk-1.36.0-dev-d171506-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.36.0-dev-d171506-amd64.zip

A preview of the website (the last 30 builds are retained):

• https://d171506-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3414/head:pr_3414 && git checkout pr_3414
• helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.36.0-dev-d171506-amd64

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gongmax, markmandel

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• OWNERS [markmandel]

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