Add a Hook Point When HttpServerRoute updated

[pepeshore]

Is your feature request related to a problem? Please describe.

name of HttpServerSpan will change several times，I want to change the sample flag for specified HttpServerSpan，So I need to be notified when HttpServerSpan name updated

Describe the solution you'd like

1: add a HttpServerRouteUpdateListener in opentelemetry-java-instrumentation
2: add a onSpanNameUpdated method in io.opentelemetry.sdk.trace.SpanProcessor in opentelemetry-sdk-trace

Describe alternatives you've considered

No response

Additional context

No response

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[pepeshore]

I also submit an issue in opentelemetry-specification open-telemetry/opentelemetry-specification#4637