Small CLI fixes

[iameskild]

Closes #1525
Closes #1530

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Changes introduced in this PR:

• Fixes bug reported in [BUG] - 'AWS_SECRET_ACCESS_KEY' requested on a digital ocean installation  #1525
• Fixes GitOps linter action in [BUG] - Nebari validate typo causes nebari-linter.yaml action to fail #1530

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[viniciusdc]

LGTM, thanks for catching this @iameskild