Update tokio-tracing monorepo

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
tracing (source)	dependencies	patch	=0.1.41 -> =0.1.42
tracing-subscriber (source)	dev-dependencies	patch	=0.3.20 -> =0.3.21
tracing-subscriber (source)	dependencies	patch	=0.3.20 -> =0.3.21

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Release Notes

tokio-rs/tracing (tracing)

v0.1.42: tracing 0.1.42

Compare Source

Important

The Span::record_all method has been removed from the documented API. It
was always unsuable via the documented API as it requried a ValueSet which
has no publically documented constructors. The method remains, but should not
be used outside of tracing macros.

Added

• attributes: Support constant expressions as instrument field names (#​3158)
• Add record_all! macro for recording multiple values in one call (#​3227)
• core: Improve code generation at trace points significantly (#​3398)

Changed

• tracing-core: updated to 0.1.35 (#​3414)
• tracing-attributes: updated to 0.1.31 (#​3417)

Fixed

• Fix "name / parent" variant of event! (#​2983)
• Remove 'r#' prefix from raw identifiers in field names (#​3130)
• Fix perf regression when release_max_level_* not set (#​3373)
• Use imported instead of fully qualified path (#​3374)
• Make valueset macro sanitary (#​3382)

Documented

• core: Add missing dyn keyword in Visit documentation code sample (#​3387)

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