Add "gke" prefix to TCP e2e firewall

[markmandel]

What type of PR is this?

Uncomment only one /kind <> line, hit 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

What this PR does / Why we need it:

Make sure we have the prefix of "gke" on the TCP firewall for the e2e cluster.

Keeps things consistent.

Which issue(s) this PR fixes:

N/A

Special notes for your reviewer:

N/A

[agones-bot]

Build Succeeded 👏

Build Id: 359a7954-7927-4a60-b6de-be60944b2c34

The following development artifacts have been built, and will exist for the next 30 days:

• image: gcr.io/agones-images/agones-controller:1.13.0-dae9f1c
• image: gcr.io/agones-images/agones-sdk:1.13.0-dae9f1c
• image: gcr.io/agones-images/agones-ping:1.13.0-dae9f1c
• Linux C++ SDK (build): agonessdk-1.13.0-dae9f1c-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.13.0-dae9f1c.zip

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

• https://dae9f1c-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/1991/head:pr_1991 && git checkout pr_1991
• helm install ./install/helm/agones --namespace agones-system --name agones --set agones.image.tag=1.13.0-dae9f1c

[roberthbailey]

Does this have any negative side-effects if you run helm upgrade? For fresh installs this doesn't concern me.

[google-oss-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: markmandel, roberthbailey

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 [markmandel,roberthbailey]

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[markmandel]

This only affects Terraform, and only on the e2e infrastructure, so no impact on Helm!

[google-oss-robot]

New changes are detected. LGTM label has been removed.

[agones-bot]

Build Succeeded 👏

Build Id: fda38cc9-9cb8-4cf3-b4d2-7c6b3e48e24a

The following development artifacts have been built, and will exist for the next 30 days:

• image: gcr.io/agones-images/agones-controller:1.13.0-9e885b7
• image: gcr.io/agones-images/agones-sdk:1.13.0-9e885b7
• image: gcr.io/agones-images/agones-ping:1.13.0-9e885b7
• Linux C++ SDK (build): agonessdk-1.13.0-9e885b7-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.13.0-9e885b7.zip

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

• https://9e885b7-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/1991/head:pr_1991 && git checkout pr_1991
• helm install ./install/helm/agones --namespace agones-system --name agones --set agones.image.tag=1.13.0-9e885b7