[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

• [x] Follow our Code of Conduct
• [x] Check that there isn't already an issue that request the same bug to avoid creating a duplicate.
• [x] Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• [x] The provided reproduction is a minimal reproducible example of the bug.