build(deps): Use Raiqub.T4Template

[skarllot]

Pull Request

Details on the issue fix or feature implementation

• Use Raiqub.T4Template instead of Raiqub.Generators.T4CodeWriter.Sources

Confirm the following

• I started this PR by branching from the head of the default branch
• I have targeted the PR to merge into the default branch
• I have included unit tests for the issue/feature
• I have successfully run a local build

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 61.24%. Comparing base (4e11c9e) to head (771e050).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #49      +/-   ##
==========================================
+ Coverage   60.96%   61.24%   +0.27%     
==========================================
  Files          78       77       -1     
  Lines        1555     1548       -7     
  Branches      117      117              
==========================================
  Hits          948      948              
+ Misses        589      582       -7     
  Partials       18       18              

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