SpringBoot When using OTel, auto-configure CompositeSpanExporters with span exporting predicates, filters, and reporters

Micrometer Tracing uses a SpanExportingPredicate to determine if a span should be exported and a SpanFilter to change the span (like a MeterFilter) before it is reported. Both are used in the bridges for brave and Otel (see CompositeSpanExporter and CompositeSpanHandler). We should auto-configure this in boot.

Comment From: wilkinsona

I've opened https://github.com/spring-projects/spring-boot/issues/32753 for the Brave side of things. This issue is now specific to Otel.

Comment From: wilkinsona

This requires some changes in Micrometer Tracing. Pushing back to 3.1.x.

Comment From: scottfrederick

Closing in favor of #34002