support configuring metrics

[davidhewitt]

Allow adding additional metrics sinks.

[hyperlint-ai]

PR Change Summary

Enhanced metrics configuration capabilities by introducing new options for metrics exporters.

• Added MetricsOptions for configuring additional metrics exporters.

Modified Files

• CHANGELOG.md

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.28302% with 39 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
src/test_utils.rs	81.25%	17 Missing and 4 partials ⚠️
src/config.rs	73.52%	9 Missing ⚠️
src/lib.rs	88.15%	4 Missing and 5 partials ⚠️

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