inode_map: replace atomics with a mutex.

[Gottox]

No description provided.

[sonarqubecloud]

Quality Gate passed

The SonarCloud Quality Gate passed, but some issues were introduced.

4 New issues
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

Attention: 11 lines in your changes are missing coverage. Please review.

Comparison is base (89bd01c) 64.06% compared to head (e62c04d) 63.99%.

Files	Patch %	Lines
libsqsh/src/archive/inode_map.c	65.62%	6 Missing and 5 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #202      +/-   ##
==========================================
- Coverage   64.06%   63.99%   -0.07%     
==========================================
  Files          70       70              
  Lines        5231     5252      +21     
  Branches      758      762       +4     
==========================================
+ Hits         3351     3361      +10     
- Misses       1464     1470       +6     
- Partials      416      421       +5     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.