remove old warning of conversion int64 to float64

[ashutosji]

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

What this PR does / Why we need it: Conversion of int64 to float64 warning doesn't require anymore. Since, Tagged issue of helm got closed. According to Agones Version chart here supported version are from 1.21 to 1.26. And officially GKE version 1.21 and earlier have reached end of life and are no longer supported.
Second Change, Pointed ref link directly to the supported version chart link instead of whole window.

Which issue(s) this PR fixes:

Closes #

Special notes for your reviewer:

[agones-bot]

Build Succeeded 👏

Build Id: 32b1c48a-a576-4756-b2e0-9b8e9145833c

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:1.33.0-4624914-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.33.0-4624914-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.33.0-4624914-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.33.0-4624914-amd64
• Linux C++ SDK (build): agonessdk-1.33.0-4624914-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.33.0-4624914-amd64.zip

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

• https://4624914-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3214/head:pr_3214 && git checkout pr_3214
• helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.33.0-4624914-amd64

[markmandel]

Good catch!

[google-oss-prow]

New changes are detected. LGTM label has been removed.

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [markmandel]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

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

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [markmandel]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[agones-bot]

Build Succeeded 👏

Build Id: 89c3a92b-5144-4f20-a6cd-ec5e8fdc6996

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:1.33.0-0e5d2be-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.33.0-0e5d2be-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.33.0-0e5d2be-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.33.0-0e5d2be-amd64
• Linux C++ SDK (build): agonessdk-1.33.0-0e5d2be-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.33.0-0e5d2be-amd64.zip

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

• https://0e5d2be-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3214/head:pr_3214 && git checkout pr_3214
• helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.33.0-0e5d2be-amd64