Switch Agones install to use Helm `agones.allocator.labels`

Agones install now has https://agones.dev/site/docs/installation/install-agones/helm/#configuration:~:text=agones.allocator.labels as part of the Helm install - so we don't have to use patching with Kustomize anymore.

We should switch over (and update Agones at the same time)

Agones has been updated! So we are one step closer.

For context, this is all the patching we can get rid of:

global-multiplayer-demo/infrastructure/files/agones/agones-install.yaml.tpl

Lines 26 to 41 in f3892dd

    
           patches: 
        
             - target: 
        
                 kind: Deployment 
        
                 name: agones-allocator 
        
               patch: |- 
        
                 apiVersion: apps/v1 
        
                 kind: Deployment 
        
                 metadata: 
        
                   name: agones-allocator 
        
                   namespace: agones-system 
        
                 spec: 
        
                   template: 
        
                     metadata: 
        
                       labels: 
        
                         istio.io/rev: asm-managed  #ASM managed dataplane channel 
        
                         region: ${location}        #Region to identify the POD and send traffic

I would be curious if we could just go straight to helm rather than going kustomize -> helm like we do now as well.

Started work on this so we can do a 0.2.0 release.

	patches:
	- target:
	kind: Deployment
	name: agones-allocator
	patch: \|-
	apiVersion: apps/v1
	kind: Deployment
	metadata:
	name: agones-allocator
	namespace: agones-system
	spec:
	template:
	metadata:
	labels:
	istio.io/rev: asm-managed #ASM managed dataplane channel
	region: ${location} #Region to identify the POD and send traffic