Move ResetMetricsOnDelete to Beta

[Kalaiselvi84]

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 feature

What this PR does / Why we need it:

Which issue(s) this PR fixes:

Closes #3100

Special notes for your reviewer:

[zmerlynn]

nit: was trying to keep this list sorted by Stage, then the name of the gate

[Kalaiselvi84]

I have rearranged the features in alphabetical order.

[agones-bot]

Build Failed 😱

Build Id: 58cfc377-f221-46d0-8d1a-1d52b1dca5b1

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[google-oss-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: Kalaiselvi84, zmerlynn
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[agones-bot]

Build Failed 😱

Build Id: fb833c4d-6dd4-414e-88bb-3fa27ce71032

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[google-oss-prow]

New changes are detected. LGTM label has been removed.

[agones-bot]

Build Succeeded 👏

Build Id: 4ce8cd15-87bf-44e6-95bd-16d35cb2b959

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:1.32.0-6846b59-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.32.0-6846b59-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.32.0-6846b59-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.32.0-6846b59-amd64
• Linux C++ SDK (build): agonessdk-1.32.0-6846b59-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.32.0-6846b59-amd64.zip

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

• https://6846b59-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3154/head:pr_3154 && git checkout pr_3154
• helm install agones ./install/helm/agones --namespace agones-system --agones.image.release=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.32.0-6846b59-amd64