[BUG] mapOutTo macro fails when generics are involved

Tapir version: 1.1.4

Scala version: 2.12.16

Describe the bug
Source: gitter thread

What is the problem?
Code that should be valid fails to compile with an error like:

[error] …/src/main/scala/…/Base.scala:36:14: The type of the tuple field doesn't match the type of the case class field (value payload): T, T
[error]     .mapOutTo[MyWrappedResponse[T]]
[error]              ^
[error] one error found

How to reproduce?
Defining an endpoint with generic output, e.g:

case class MyWrappedResponse[T](statusCode: Int, payload: T)
def genericResponse[T : JsonCodec : Schema : ClassTag]: PublicEndpoint[Unit, Unit, MyWrappedResponse[T], Any] = endpoint
  .get
  .in("entity" / implicitly[ClassTag[T]].runtimeClass.getSimpleName)
  .out(statusCode)
  .mapOut(sc => sc.code)(StatusCode.unsafeApply)
  .out(jsonBody[T])
  .mapOutTo[MyWrappedResponse[T]]

Start by reproducing the genericResponse example with Scala 2.12.16 and inspect the mapOutTo entry point and the related macro diagnostics shown from Base.scala:36. Done means the generic endpoint compiles without the tuple-field type mismatch when mapOutTo[MyWrappedResponse[T]] is used.