Generate the v1.13 version of the semconv pacakge

[MrAlias]

The v1.13 version of the specification has been released. A new v1.13 version of semconv needs to be generated for this.

[MrAlias]

Looking at the refactor necessary for the net and http functions, it smells like these functions should be removed from the semconv version packages.

They could be refactor and put into a separate dedicated package (i.e. go.opentelemetry.io/otel/semconv/httpconv). That way the semconv package could be updated and the dependency in the httpconv package separately updated.

Alternately, given these are only used in the net/http* instrumentation, they could be moved there. Not sure if they need to continue being exported.

[MrAlias]

They could be refactor and put into a separate dedicated package (i.e. go.opentelemetry.io/otel/semconv/httpconv). That way the semconv package could be updated and the dependency in the httpconv package separately updated.

The downside to this approach is that if there is again breaking changes to how semantic conventions need to be applied it could not be refactored without deprecations.

[MrAlias]

Alternately, given these are only used in the net/http* instrumentation, they could be moved there. Not sure if they need to continue being exported.

A quick search across all of GitHub show these functions are used in more than just the net/http instrumentation. Wherever they land they need to remain publically accessible.