[Owin] Bump target .NET Framework and OTel SDK version

[CodeBlanch]

Changes

Updated to target net462 and OTel 1.3.1 SDK

See #652 (comment)

/cc @Kielek

• Appropriate CHANGELOG.md updated for non-trivial changes

[codecov]

Codecov Report

Merging #653 (61badfe) into main (c0e856a) will not change coverage.
The diff coverage is n/a.

❗ Current head 61badfe differs from pull request most recent head 83fa04e. Consider uploading reports for the commit 83fa04e to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #653   +/-   ##
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  Coverage   77.78%   77.78%           
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  Files         170      170           
  Lines        5154     5154           
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  Hits         4009     4009           
  Misses       1145     1145