Switch from the unmaintained daemonize crate to a maintained fork

[decathorpe]

The daemonize crate was marked as unmaintained. It also has a potential UB issue, though as far as I can tell, sccache does not use the crate in a way that would trigger the problem.

This PR switches the dependency to a maintained fork (maintained by me) where that UB issue was resolved in a published version.

c.f. https://rustsec.org/advisories/RUSTSEC-2025-0069.html

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 70.34%. Comparing base (77ce75c) to head (7258055).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2500      +/-   ##
==========================================
+ Coverage   66.95%   70.34%   +3.38%     
==========================================
  Files          64       64              
  Lines       35320    35320              
==========================================
+ Hits        23649    24846    +1197     
+ Misses      11671    10474    -1197     

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