[Bug]: Don't output peer and dev dependencies when I'm not building a tsp library or emitter

[Petermarcu]

Describe the bug

Don't output peer and dev dependencies when I'm not building a tsp library or emitter. Today it does that and its a pain to maintain.

Reproduction

use tsp init and just select openapi3 and csharp client and server emitters.

Checklist

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• The provided reproduction is a minimal reproducible example of the bug.