xfsprogs: mark as broken on musl (#394591)

pkgs/by-name/xf/xfsprogs/package.nix

···
       dezgeg
       ajs124
     ];
+    # error: ‘struct statx’ has no member named ‘stx_atomic_write_unit_min’ ‘stx_atomic_write_unit_max’ ‘stx_atomic_write_segments_max’
+    # remove if https://www.openwall.com/lists/musl/2024/10/23/6 gets merged
+    broken = stdenv.hostPlatform.isMusl;
   };
 }