Update nuget monorepo to v7 (major)

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
NuGet.ProjectModel (source)	6.14.0 -> 7.0.0
NuGet.Versioning (source)	6.14.0 -> 7.0.0

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Configuration

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.2%. Comparing base (e7e4a99) to head (e983524).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #1553   +/-   ##
=====================================
  Coverage   90.2%   90.2%           
=====================================
  Files        423     423           
  Lines      35476   35476           
  Branches    2209    2209           
=====================================
+ Hits       32020   32021    +1     
  Misses      3001    3001           
+ Partials     455     454    -1     

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