[feature] EKS Auto-Mode example for Spark Operator

[alanty]

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What is the outcome that you are trying to reach?

The Spark operator blueprint seems like it could use EKS Auto-Mode. This would help simplify the node config for the spark environments.

Describe the solution you would like

Provide an example node configuration and Spark job in the Spark Operator Blueprints for running on EKS Auto-Mode

Describe alternatives you have considered

Additional context