chore: update libcosmic with mmap threshold fix

src/main.rs

@@ -6,11 +6,5 @@ use tikv_jemallocator::Jemalloc;
 static GLOBAL: Jemalloc = Jemalloc;
 
 fn main() -> Result<(), Box<dyn std::error::Error>> {
-    // Prevents glibc from hoarding memory via memory fragmentation.
-    #[cfg(all(not(feature = "jemalloc"), target_env = "gnu"))]
-    unsafe {
-        libc::mallopt(libc::M_MMAP_THRESHOLD, 65536);
-    }
-
     cosmic_files::main()
 }