misc sonarlint changes

[neheb]

Mostly const changes.

Signed-off-by: Rosen Penev rosenp@gmail.com

[codecov]

Codecov Report

Merging #2297 (2486a7d) into main (8ba9003) will increase coverage by 0.02%.
The diff coverage is 61.70%.

@@            Coverage Diff             @@
##             main    #2297      +/-   ##
==========================================
+ Coverage   63.51%   63.53%   +0.02%     
==========================================
  Files         118      118              
  Lines       19610    19595      -15     
  Branches     9584     9576       -8     
==========================================
- Hits        12455    12450       -5     
+ Misses       5090     5079      -11     
- Partials     2065     2066       +1     

Impacted Files	Coverage Δ
app/exiv2app.hpp	100.00% <ø> (ø)
include/exiv2/webpimage.hpp	100.00% <ø> (ø)
src/casiomn_int.cpp	6.89% <0.00%> (ø)
src/cr2image.cpp	19.73% <0.00%> (+0.25%)	⬆️
src/tiffcomposite_int.hpp	92.72% <ø> (ø)
src/tiffvisitor_int.hpp	100.00% <ø> (ø)
src/webpimage.cpp	43.14% <7.14%> (+0.47%)	⬆️
src/tiffimage_int.cpp	78.34% <25.00%> (+0.46%)	⬆️
src/tiffimage.cpp	70.54% <40.00%> (+1.60%)	⬆️
src/canonmn_int.cpp	71.55% <50.00%> (ø)
... and 14 more

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[piponazo]

Most of the changes LGTM. I only have concerns about the comment I made.