Helm Chart: Add strategy for deployment type.

[acolodreroarion]

What's the use case?

When deploying a code location server, it should be possible to change paramaters in the helm chart for deployment strategy.

strategy:
replicas: 3
type: RollingUpdate / Recreate / Blue Green
rollingUpdate:
maxUnavailable: 1
maxSurge: 1

Ideas of implementation

Add the code to https://github.com/dagster-io/dagster/blob/master/helm/dagster/charts/dagster-user-deployments/templates/deployment-user.yaml

and add the values to values.yaml

Additional information

No response

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