[projmgr] Check file references portability

[grasci-arm]

Relates to #1020

[codecov]

Codecov Report

Merging #1050 (8612403) into main (74b06bd) will increase coverage by 0.05%.
The diff coverage is 81.39%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1050      +/-   ##
==========================================
+ Coverage   54.55%   54.61%   +0.05%     
==========================================
  Files         116      116              
  Lines       22676    22701      +25     
  Branches    12588    12606      +18     
==========================================
+ Hits        12371    12398      +27     
+ Misses       8150     8148       -2     
  Partials     2155     2155              

Flag	Coverage Δ
projmgr-cov	82.47% <81.39%> (+0.15%)	⬆️

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

Impacted Files	Coverage Δ
tools/projmgr/src/ProjMgr.cpp	76.80% <ø> (+0.01%)	⬆️
tools/projmgr/src/ProjMgrYamlParser.cpp	74.67% <81.39%> (+0.75%)	⬆️

... and 1 file with indirect coverage changes

[github-actions]

Test Results

    3 files    15 suites   2m 28s ⏱️
260 tests 260 ✔️ 0 💤 0 ❌
780 runs  780 ✔️ 0 💤 0 ❌

Results for commit 6f86462.