Implement migration to ComponentProvider pattern for environment-base… #1681

[31oli31]

…d factories

• Introduced new factories: ComponentProviderBasedSpanProcessorFactory, ComponentProviderBasedSamplerFactory, ComponentProviderBasedExporterFactory, and ComponentProviderBasedLogRecordProcessorFactory to replace legacy factory interfaces.
• Updated TracerProviderFactory to utilize the new ComponentProvider-based factories.
• Added MIGRATION_SUMMARY.md detailing the migration process, benefits, and testing outcomes.
• Ensured backward compatibility and maintained existing environment variable configurations.

Should solve issue #1681

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[ChrisLightfootWild]

Hey @31oli31 👋

I think a lot of this might already have been implemented in https://github.com/open-telemetry/opentelemetry-php/tree/2.x

Potentially worth double checking there first to see if there are any unidentified areas that need coverage.