libdwarfs maitenance release

[maxirmx]

• Moved arm64 tests to cirrus-ci
• Implemented support for newer GCC compilers (12, 13)
• Improved coverity and codecov setup, fixed some issues
• Added cpp-lint; applied consistent code formatting

[codecov[bot]]

Codecov Report

Merging #90 (22f855c) into main (0e09393) will increase coverage by 3.43%. The diff coverage is 81.61%.

:exclamation: Current head 22f855c differs from pull request most recent head 107252e. Consider uploading reports for the commit 107252e to get more accurate results

@@            Coverage Diff             @@
##             main      #90      +/-   ##
==========================================
+ Coverage   77.59%   81.03%   +3.43%     
==========================================
  Files          24       15       -9     
  Lines        1727     1028     -699     
==========================================
- Hits         1340      833     -507     
+ Misses        387      195     -192     

Impacted Files	Coverage Δ
include/tebako-mfs.h	100.00% <ø> (ø)
src/tebako-mfs.cpp	53.57% <63.63%> (+3.57%)	:arrow_up:
src/file-io.cpp	74.28% <73.91%> (+1.15%)	:arrow_up:
src/tebako-fd.cpp	74.83% <74.83%> (+1.22%)	:arrow_up:
src/tebako-dfs.cpp	76.32% <76.44%> (-0.15%)	:arrow_down:
src/tebako-io-helpers.cpp	80.00% <80.00%> (-0.96%)	:arrow_down:
src/dir-ctl.cpp	84.61% <84.61%> (ø)
src/dir-io.cpp	86.66% <86.66%> (+0.40%)	:arrow_up:
src/tebako-dirent.cpp	86.66% <86.66%> (+0.30%)	:arrow_up:
src/dl.cpp	87.09% <87.09%> (-0.12%)	:arrow_down:
... and 5 more

... and 1 file with indirect coverage changes