Preparation for Release v1.46.0

[0xaravindh]

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:

Which issue(s) this PR fixes:

Closes #4039

Special notes for your reviewer:

[agones-bot]

Build Succeeded 🥳

Build Id: a219c9d9-64fd-4dc6-af51-5e4a5fecce11

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:1.46.0-dev-ef911fc
• image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.46.0-dev-ef911fc
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.46.0-dev-ef911fc-linux
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.46.0-dev-ef911fc
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.46.0-dev-ef911fc
• Linux C++ SDK (build): agonessdk-1.46.0-dev-ef911fc-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.46.0-dev-ef911fc.zip

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

• https://ef911fc-dot-preview-dot-agones-images.appspot.com/

To install this version:

git fetch https://github.com/googleforgames/agones.git pull/4043/head:pr_4043 && git checkout pr_4043
helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.46.0-dev-ef911fc