Fix unaccurate progress description of HA Agones

[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:
Update the document of HA Agones to reflect all phases are in.

Which issue(s) this PR fixes:

Closes #

Special notes for your reviewer:

[agones-bot]

Build Succeeded 👏

Build Id: f0aeb94f-aa23-41be-8844-a6b1708a5ee4

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:1.35.0-dev-62762c8-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.35.0-dev-62762c8-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.35.0-dev-62762c8-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.35.0-dev-62762c8-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.35.0-dev-62762c8-amd64
• Linux C++ SDK (build): agonessdk-1.35.0-dev-62762c8-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.35.0-dev-62762c8-amd64.zip

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

• https://62762c8-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3364/head:pr_3364 && git checkout pr_3364
• helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.35.0-dev-62762c8-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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[google-oss-prow]

New changes are detected. LGTM label has been removed.

[agones-bot]

Build Succeeded 👏

Build Id: 30bb66b7-5f00-43ac-bf21-694af53c6bb6

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:1.35.0-dev-f5d8d46-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.35.0-dev-f5d8d46-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.35.0-dev-f5d8d46-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.35.0-dev-f5d8d46-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.35.0-dev-f5d8d46-amd64
• Linux C++ SDK (build): agonessdk-1.35.0-dev-f5d8d46-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.35.0-dev-f5d8d46-amd64.zip

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

• https://f5d8d46-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3364/head:pr_3364 && git checkout pr_3364
• helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.35.0-dev-f5d8d46-amd64