libatomic.a dependency causes issues when building on Arch Linux

Nuitka (and probably other py-to-exe software) tries to use libatomic.a instead of libatomic.so, which crashes gcc or other compilers.
In Arch Linux, libatomic.a does not exist anymore.
replacing compiler flags from `-l:libatomic.a` to `-latomic` fixes the issue, the dynamic version of libatomic is always available.

Example error:
```
gcc -o /home/csd4ni3l/Documents/Python3/shatterstack/test.dist/test -s -z noexecstack -export-dynamic -Wl,-R,'$ORIGIN' -Wl,--disable-new-dtags @"./@link_input.txt" -L/home/csd4ni3l/.local/share/uv/python/cpython-3.11.11-linux-x86_64-gnu/lib -ldl -lm -lpython3.11 -ldl -lpthread -lutil -lrt -lm -l:libatomic.a -l:libatomic.a
/usr/bin/ld: cannot find -l:libatomic.a: No such file or directory
/usr/bin/ld: cannot find -l:libatomic.a: No such file or directory
collect2: error: ld returned 1 exit status
```