Helm test instruction cleanup in Agones doc

[Kalaiselvi84]

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/kind breaking
/kind bug
/kind cleanup
/kind documentation
/kind feature
/kind hotfix

/kind cleanup

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Which issue(s) this PR fixes:

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[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Kalaiselvi84, markmandel

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[agones-bot]

Build Failed 😱

Build Id: 36193077-e879-46f5-a76f-e37963a7629c

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[markmandel]

Failure on e2e on autopilot

Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates": === FAIL: test/e2e TestGameServerSetPlayerCapacity/initial_capacity_set (115.80s)
Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates": time="2023-03-29 20:28:08.450" level=info msg="waiting for fleet condition" fleet=preferred-cgv9f test=TestGameServerAllocationPreferredSelection
Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates": time="2023-03-29 20:28:08.652" level=info msg="Waiting for states to match" awaitingState=Ready currentState=Starting gs=game-server6x5pr test=TestPlayerConnectWithCapacityZero
Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates": time="2023-03-29 20:28:09.053" level=info msg="Checking Fleet Ready replicas" expected=150 fleet=preferred-vmktg fleetStatus="{Replicas:150 ReadyReplicas:9 ReservedReplicas:0 AllocatedReplicas:0 Players:0xc000585ec0}" test=TestGameServerAllocationDuringMultipleAllocationClients
Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates": time="2023-03-29 20:28:09.453" level=info msg="Checking Fleet Ready replicas" expected=3 fleet=simple-fleet-1.07tnkv fleetStatus="{Replicas:4 ReadyReplicas:2 ReservedReplicas:0 AllocatedReplicas:1 Players:0xc0003b6630}" test=TestAutoscalerBasicFunctions
Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates": time="2023-03-29 20:28:09.651" level=info msg="Checking Fleet Ready replicas" expected=3 fleet=simple-fleet-1.0bbzkx fleetStatus="{Replicas:3 ReadyReplicas:2 ReservedReplicas:0 AllocatedReplicas:0 Players:0xc00057ca00}" test=TestFleetStrategyValidation
Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates":     gameserver_test.go:1050: Could not get a GameServer ready: waiting for {game-server [{udp-port Dynamic <nil> 7654 0 UDP}] {false 0 0 0}  { 0 0} {{      0 0001-01-01 00:00:00 +0000 UTC <nil> <nil> map[] map[] [] [] []} {[] [] [{game-server us-docker.pkg.dev/agones-images/examples/simple-game-server:0.14 [] []  [] [] [] {map[cpu:{{30 -3} {<nil>} 30m DecimalSI} memory:{{33554432 0} {<nil>}  BinarySI}] map[cpu:{{30 -3} {<nil>} 30m DecimalSI} memory:{{33554432 0} {<nil>}  BinarySI}]} [] [] nil nil nil nil   IfNotPresent nil false false false}] []  <nil> <nil>  map[]   <nil>  false false false <nil> nil []   nil  [] []  <nil> nil [] <nil> <nil> <nil> map[] [] <nil> nil <nil>}} 0xc000433a78 map[] map[] <nil>} GameServer instance readiness timed out (): waiting for GameServer 1680121195/game-serverg5p8q to be Ready: GameServer reached terminal state Unhealthy
Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates":     --- FAIL: TestGameServerSetPlayerCapacity/initial_capacity_set (115.80s)
Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates": 
Step #24 - "submit-e2e-test-cloud-build": gke-autopilot-1.26: Step #1 - "e2e-feature-gates": === FAIL: test/e2e TestGameServerSetPlayerCapacity (127.60s)

[agones-bot]

Build Failed 😱

Build Id: 89528457-27f8-45f7-b972-854a22d37ccd

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[agones-bot]

Build Succeeded 👏

Build Id: 8864f64d-1d09-4d50-af1e-479380db1da0

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:1.31.0-36f8879-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-sdk:1.31.0-36f8879-linux-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-ping:1.31.0-36f8879-amd64
• image: us-docker.pkg.dev/agones-images/ci/agones-allocator:1.31.0-36f8879-amd64
• Linux C++ SDK (build): agonessdk-1.31.0-36f8879-amd64-linux-arch_64.tar.gz
• SDK Server: agonessdk-server-1.31.0-36f8879-amd64.zip

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

• https://36f8879-dot-preview-dot-agones-images.appspot.com/

To install this version:

• git fetch https://github.com/googleforgames/agones.git pull/3052/head:pr_3052 && git checkout pr_3052
• helm install agones ./install/helm/agones --namespace agones-system --agones.image.release=us-docker.pkg.dev/agones-images/ci --set agones.image.tag=1.31.0-36f8879-amd64