use fs_err for sake of better io errors

[drahnr]

Provides path names of failing io operations where possible by default, both in the resulting binaries which ease debugging of i.e. selinux or seccomp filters, without resorting to strace, but also local unit test file operations.

The identical change was made in cachepot

[drahnr]

Superseeds #1611 which covers two instances, where this covers all io operations except for two, where the std::fs::File API is required for external crates.

[codecov-commenter]

Codecov Report

Base: 30.80% // Head: 30.91% // Increases project coverage by +0.10% 🎉

Coverage data is based on head (7753824) compared to base (4b53aca).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1616      +/-   ##
==========================================
+ Coverage   30.80%   30.91%   +0.10%     
==========================================
  Files          49       49              
  Lines       16618    16649      +31     
  Branches     8049     8055       +6     
==========================================
+ Hits         5120     5147      +27     
- Misses       6216     6229      +13     
+ Partials     5282     5273       -9     

Impacted Files	Coverage Δ
src/cache/cache.rs	38.20% <ø> (-0.38%)	⬇️
src/commands.rs	19.51% <ø> (ø)
src/compiler/c.rs	38.16% <ø> (ø)
src/compiler/clang.rs	53.11% <ø> (ø)
src/compiler/compiler.rs	36.03% <ø> (+0.07%)	⬆️
src/compiler/diab.rs	47.96% <ø> (+0.27%)	⬆️
src/compiler/gcc.rs	55.47% <ø> (+1.03%)	⬆️
src/compiler/msvc.rs	42.80% <ø> (ø)
src/compiler/nvcc.rs	35.32% <ø> (ø)
src/compiler/rust.rs	33.81% <0.00%> (-0.14%)	⬇️
... and 29 more

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