Add Support for Intersection Types in Scala 2

[asr2003]

Changes Made:

• Introduced special handling for Scala 2, where intersection types (with) require casting via asInstanceOf to ensure proper type alignment when applying handler aspects.
• In Scala 3, intersection types (&) are natively supported and I think do not require casting, so the handler aspect is applied directly.

/claim #3112
fixes #3112

[asr2003]

@987Nabil How can we make a test to run in Scala2 Only to test the patch. I have test ready but stuck in how to make it run for Scala2 only.

I didn't see any @@Scala2Only something similiar like in ZIO

[codecov-commenter]

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Codecov Report

Attention: Patch coverage is 85.71429% with 1 line in your changes missing coverage. Please review.

Project coverage is 65.10%. Comparing base (f164c90) to head (26ed2cb).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...o-http/shared/src/main/scala/zio/http/Routes.scala	85.71%	1 Missing ⚠️

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Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3126      +/-   ##
==========================================
+ Coverage   65.09%   65.10%   +0.01%     
==========================================
  Files         161      161              
  Lines       10551    10557       +6     
  Branches     2024     1993      -31     
==========================================
+ Hits         6868     6873       +5     
- Misses       3683     3684       +1     

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[987Nabil]

There is no test

[asr2003]

Just to confirm to test patch for scala2, I have waited. I will add it now

[987Nabil]

Closing in favor of #3128