[projmgr] Fix classic generator's bootstrap content reporting

[spcaipers-arm]

Address #1560 and #1836

[github-actions]

Test Results

    3 files     18 suites   8m 38s ⏱️
  376 tests   376 ✅ 0 💤 0 ❌
1 128 runs  1 128 ✅ 0 💤 0 ❌

Results for commit 6400e16.

[codecov]

Codecov Report

Attention: Patch coverage is 92.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 64.96%. Comparing base (94f8dfe) to head (6400e16).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
tools/projmgr/src/ProjMgrWorker.cpp	92.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1870   +/-   ##
=======================================
  Coverage   64.96%   64.96%           
=======================================
  Files         163      163           
  Lines       34581    34587    +6     
  Branches    20062    20065    +3     
=======================================
+ Hits        22464    22468    +4     
- Misses       7954     7960    +6     
+ Partials     4163     4159    -4     

Flag	Coverage Δ
projmgr-cov	81.67% <92.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
tools/projmgr/src/ProjMgrWorker.cpp	87.69% <92.00%> (-0.04%)	⬇️

... and 1 file with indirect coverage changes