Update Rust crate tracing to v0.1.37

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
tracing (source)	dependencies	patch	=0.1.36 -> =0.1.37

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Release Notes

tokio-rs/tracing

v0.1.37

Compare Source

This release of tracing incorporates changes from tracing-core
v0.1.30 and tracing-attributes v0.1.23,
including the new Subscriber::on_register_dispatch method for performing late
initialization after a Subscriber is registered as a Dispatch, and bugfixes
for the #[instrument] attribute. Additionally, it fixes instances of the
bare_trait_objects lint, which is now a warning on tracing's MSRV and will
become an error in the next edition.

Fixed

• attributes: Incorrect handling of inner attributes in #[instrument]ed
  functions (#​2307)
• attributes: Incorrect location of compiler diagnostic spans generated for
  type errors in #[instrument]ed async fns (#​2270)
• attributes: Updated syn dependency to fix compilation with -Z minimal-versions (#​2246)
• bare_trait_objects warning in valueset! macro expansion (#​2308)

Added

• core: Subscriber::on_register_dispatch method (#​2269)
• core: WeakDispatch type and Dispatch::downgrade() function (#​2293)

Changed

• tracing-core: updated to 0.1.30
• tracing-attributes: updated to 0.1.23

Documented

• Added [tracing-web][tracing-web] and [reqwest-tracing][reqwest-tracing] to related crates (#​2283,
  #​2331)

Thanks to new contributors @​compiler-errors, @​e-nomem, @​WorldSEnder, @​Xiami2012,
and @​tl-rodrigo-gryzinski, as well as @​jswrenn and @​CAD97, for contributing to
this release!

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