Update module go.opentelemetry.io/contrib/propagators/b3 to v1.21.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
go.opentelemetry.io/contrib/propagators/b3	require	patch	v1.21.0 -> v1.21.1

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Release Notes

open-telemetry/opentelemetry-go-contrib (go.opentelemetry.io/contrib/propagators/b3)

v1.21.1: /v0.46.1/v0.15.1/v0.1.1

Compare Source

Changed

• Upgrade dependencies of OpenTelemetry Go to use the new v1.21.0/v0.44.0 release. (#​4582)

Fixed

• Fix StreamClientInterceptor in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc to end the spans synchronously. (#​4537)
• Fix data race in stats handlers when processing messages received and sent metrics in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc. (#​4577)
• The stats handlers NewClientHandler, NewServerHandler in go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc now record RPC durations in ms instead of ns. (#​4548)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (abdeacb) 91.60% compared to head (07f90e9) 91.58%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8909      +/-   ##
==========================================
- Coverage   91.60%   91.58%   -0.02%     
==========================================
  Files         317      317              
  Lines       17013    17013              
==========================================
- Hits        15585    15582       -3     
- Misses       1134     1136       +2     
- Partials      294      295       +1     

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