Set launch_template.ami_id attrs to private

[viniciusdc]

This PR will disable the configuration of node_groups.*.launch_template.ami_id specifically, until #2832 is addressed.

Reference Issues or PRs

What does this implement/fix?

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds a feature)
• Breaking change (fix or feature that would cause existing features not to work as expected)
• Documentation Update
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
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Testing

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Any other comments?

[viniciusdc]

Checking pydantic docs to be sure this is the correct setting https://docs.pydantic.dev/1.10/usage/models/#private-model-attributes

[viniciusdc]

This is what the validation error will look like if the user tries to pass the ami_id field

The reason for not completely removing it, is that once the error on the terraform side of things is addressed, we can just re-enable this field instead of re-including

[viniciusdc]

just waiting for the tests

[dcmcand]

🎉