feat: use new errors pkg in pkg/cloudproduct/*

[lacroixthomas]

What type of PR is this?
/kind cleanup

What this PR does / Why we need it:

Use the new error package (https://github.com/agones-dev/agones/blob/main/pkg/util/errors/errors.go) on the pkg/cloudproduct/* files

Which issue(s) this PR fixes:
Work on #4510

Did you use AI tools in preparing this PR?:
Y

Special notes for your reviewer:

[agones-bot]

Build Failed 😭

Build Id: 15bccbaa-69ab-429f-aa52-d5b8f9350d14

Status: FAILURE

• Cloud Build view
• Cloud Build log download

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[markmandel]

Easy approve

[agones-bot]

Build Failed 😭

Build Id: e59d50b7-bda1-4ddc-835e-8e067664eaab

Status: FAILURE

• Cloud Build view
• Cloud Build log download

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[markmandel]

/gcbrun

Cloud Build is being super grumpy lately

ERROR: build step 1 "e2e-runner" failed: failed to copy output from container: Error response from daemon: error while mounting volume '/var/lib/docker/volumes/step-1-c71dc8ee-3354-4300-b945-f451c819b5a1/_data': get step-1-c71dc8ee-3354-4300-b945-f451c819b5a1: database not open

[agones-bot]

Build Succeeded 🥳

Build Id: 04a90579-25a9-4507-9075-4d036a5f9469

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:1.61.0-dev-19725c1
• image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.61.0-dev-19725c1
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.61.0-dev-19725c1-linux
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.61.0-dev-19725c1
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.61.0-dev-19725c1
• image: us-docker.pkg.dev/agones-images/ci/agones-processor:1.61.0-dev-19725c1
• Linux C++ SDK (build): agonessdk-1.61.0-dev-19725c1-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.61.0-dev-19725c1.zip

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

• https://19725c1-dot-preview-dot-agones-images.appspot.com/

To install this version:

git fetch https://github.com/googleforgames/agones.git pull/4712/head:pr_4712 && git checkout pr_4712
helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.61.0-dev-19725c1