THRIFT-4960 Bare Trait Warnings

[dbcfd]

Fixes bare trait (dyn) warnings in the library as well as generated code.

Bare traits, e.g. &mut TInputProtocol currently generate warnings which will be an error in a future rust version. Bare traits are now fixed in the rust lib and generated code to include dyn.

• Did you create an Apache Jira ticket? (not required for trivial changes)
• Does your pull request title follow the pattern "THRIFT-NNNN: describe my issue"? (not required for trivial changes)
• Did you squash your changes to a single commit? (not required, but preferred)
• Did you do your best to avoid breaking changes? If one was needed, did you label the Jira ticket with "Breaking-Change"?
• If your change does not involve any code, add [skip ci] at the end of your pull request to free up build resources.

[Jens-G]

I created a ticket for you. Next time please try to follow our contrib guide. Thank you!

[dbcfd]

Sorry @Jens-G, thought this fell under trivial change, compiler warning, since it was a rust compiler warning, but it does change the code generator. Will make an issue next time.