add net47 target framework

[phnx47]

Fix #354

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.95%. Comparing base (81c8bf6) to head (71d72ad).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #355   +/-   ##
=======================================
  Coverage   88.95%   88.95%           
=======================================
  Files          48       48           
  Lines        1738     1738           
  Branches      233      233           
=======================================
  Hits         1546     1546           
  Misses        140      140           
  Partials       52       52           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.