Bump example image versions

[igooch]

What type of PR is this?

/kind cleanup

What this PR does / Why we need it:

Continues #3137 upgrading to Golang 1.20.4 by bumping up the example version numbers.
Also moves build example commands from the SDK Makefile to the Example Makefile.

Which issue(s) this PR fixes:

N/A

Special notes for your reviewer:

[agones-bot]

Build Failed 😱

Build Id: 836f40ad-5375-43af-91b1-9e0aaf5d3248

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[agones-bot]

Build Failed 😱

Build Id: 2bf1739b-8087-4b67-83de-20bced009418

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[agones-bot]

Build Failed 😱

Build Id: cf689cd5-cb2c-4985-8378-ca052d0b8c93

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[agones-bot]

Build Succeeded 👏

Build Id: 6adea12e-cf26-4596-a931-5cf1c869b788

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:1.32.0-3360ac9-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.32.0-3360ac9-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.32.0-3360ac9-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.32.0-3360ac9-amd64
• Linux C++ SDK (build): agonessdk-1.32.0-3360ac9-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.32.0-3360ac9-amd64.zip

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

• https://3360ac9-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3138/head:pr_3138 && git checkout pr_3138
• helm install agones ./install/helm/agones --namespace agones-system --agones.image.release=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.32.0-3360ac9-amd64

[google-oss-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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