Removing dzlier-gcp from approvers list.

[dzlier-gcp]

/kind cleanup

What this PR does / Why we need it:
I no longer work on Agones and shouldn't be on the approvers list.

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dzlier-gcp, markmandel

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

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [dzlier-gcp,markmandel]

Approvers can indicate their approval by writing /approve in a comment
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[agones-bot]

Build Succeeded 👏

Build Id: 94326b41-e1c5-4a06-99d3-d9ada0795167

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:1.31.0-75565c5-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.31.0-75565c5-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.31.0-75565c5-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.31.0-75565c5-amd64
• Linux C++ SDK (build): agonessdk-1.31.0-75565c5-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.31.0-75565c5-amd64.zip

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

• https://75565c5-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3021/head:pr_3021 && git checkout pr_3021
• helm install agones ./install/helm/agones --namespace agones-system --agones.image.release=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.31.0-75565c5-amd64