Ignore build gcloud config in yamllint

[markmandel]

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:

Small cleanup to avoid false warnings on local linting.

Which issue(s) this PR fixes:

N/A

Special notes for your reviewer:

N/A

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gongmax, markmandel, zmerlynn

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

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Needs approval from an approver in each of these files:

• OWNERS [markmandel]

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[agones-bot]

Build Failed 😱

Build Id: 80c69895-eb1a-42b9-85b0-63763c71d805

• Cloud Build view
• Cloud Build log download

To get permission to view the Cloud Build view, join the agones-discuss Google Group.

[markmandel]

Error: query: failed to query with labels: an error on the server ("Internal Server Error: \"/api/v1/namespaces/agones-system/secrets?labelSelector=name%3Dagones%2Cowner%3Dhelm\": the server could not find the requested resource") has prevented the request from succeeding (get secrets)
make: *** [Makefile:426: install] Error 1

Have not seen that before!

[agones-bot]

Build Succeeded 👏

Build Id: 4aa353cf-aea5-4bce-bf7f-07fd9d1ffcaa

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:1.36.0-dev-f40524c-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-extensions:1.36.0-dev-f40524c-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.36.0-dev-f40524c-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.36.0-dev-f40524c-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.36.0-dev-f40524c-amd64
• Linux C++ SDK (build): agonessdk-1.36.0-dev-f40524c-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.36.0-dev-f40524c-amd64.zip

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

• https://f40524c-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3446/head:pr_3446 && git checkout pr_3446
• helm install agones ./install/helm/agones --namespace agones-system --set agones.image.registry=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.36.0-dev-f40524c-amd64