Global error handler cleanup - ManualReader

[lalitb]

Fixes #
Design discussion issue (if applicable) #

Changes

Please provide a brief description of the changes here.

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)

[lalitb]

Utkarsh's comment:
1.
name: "ManualReader.RegisterPipeline.DuplicateRegistration",
name: "ManualReader.DuplicateRegistration",
2.
replace error with `message

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 79.5%. Comparing base (45b4f82) to head (22cfdff).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
opentelemetry-sdk/src/metrics/manual_reader.rs	0.0%	3 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #2236   +/-   ##
=====================================
  Coverage   79.5%   79.5%           
=====================================
  Files        121     121           
  Lines      21113   21113           
=====================================
  Hits       16805   16805           
  Misses      4308    4308           

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[lalitb]

Merging this. ARM64 CI tests are not starting for different reason, Will look into it separately -

Requested labels: actuated-arm64-4cpu-16gb
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