fix: fail to build with features=tracing

[joshleeb]

This change fixes a type error that occurs when building with the tracing feature. It looks like it may have been introduced in 932351a.

$ cargo c --features=tracing
    Checking dprint-plugin-typescript v0.58.0
error[E0308]: mismatched types
  --> src/format_text.rs:75:36
   |
75 |   ensure_no_specific_syntax_errors(parsed_source).unwrap();
   |                                    ^^^^^^^^^^^^^
   |                                    |
   |                                    expected `&ParsedSource`, found struct `ParsedSource`
   |                                    help: consider borrowing here: `&parsed_source`

For more information about this error, try `rustc --explain E0308`.
error: could not compile `dprint-plugin-typescript` due to previous error

[dsherret]

Thanks @joshleeb! I often accidentally break the tracing build 😅