Update OTLP proto version to 1.1.0

[lalitb]

Changes

The significant change in otel-proto v1.1.0 is - Add flags field to Span and Span/Link for W3C-specified Trace Context flags . #503

Merge requirement checklist

• CONTRIBUTING guidelines followed
• Unit tests added/updated (if applicable)
• Appropriate CHANGELOG.md files updated for non-trivial, user-facing changes
• Changes in public API reviewed (if applicable)

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (16fd1ab) 63.2% compared to head (6c5320e) 63.7%.
Report is 2 commits behind head on main.

Files	Patch %	Lines
opentelemetry-proto/src/transform/trace.rs	25.0%	3 Missing ⚠️
opentelemetry-stdout/src/trace/transform.rs	0.0%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #1482     +/-   ##
=======================================
+ Coverage   63.2%   63.7%   +0.5%     
=======================================
  Files        147     142      -5     
  Lines      19664   19499    -165     
=======================================
+ Hits       12428   12432      +4     
+ Misses      7236    7067    -169     

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[jtescher]

Looks good, can we update opentelemetry-stdout to add the new fields as well? Also a changeset

[lalitb]

Looks good, can we update opentelemetry-stdout to add the new fields as well? Also a changeset

Thanks, both are done.