semconv: fix semconv generation

[iRevive]

The gen job was failing with the following error:

Diagnostic report:

  × Template evaluation error -> cannot deserialize: Expected simple type,
  │ template type, or enum type, found any (in SemanticAttributes.scala.j2:2)
  │ 

Some entries have any type for unknown reason.

oteljava fixed the issue in a similar manner: https://github.com/open-telemetry/semantic-conventions-java/pull/217/files