Cleanup c2r pkg correctly

[andywaltlova]

HMS-3086

• cleanup after pre-conversion
  • for both fails and successes - if convert2rhel existed on system before pkg is kept on system (update of the pkg is not rolled back), else cleaned up
• cleanup after conversion
  • for fails - if convert2rhel existed on system before pkg is kept on system (update of the pkg is not rolled back), else cleaned up
  • for successes - pkg is always kept because of statistics with the note that this can be removed after we do not rely on that fact

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8b96685) 100.00% compared to head (13a302f) 100.00%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main       #37   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            2         2           
  Lines          351       382   +31     
=========================================
+ Hits           351       382   +31     

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[r0x0d]

We can fix the pre-commit errors in a following pr.