Cast FreeBSDProcess_new to Process_New

`Process_new_fn` had been renamed to `Process_New` in
d880def0

freebsd/FreeBSDProcessList.c

@@ -146,7 +146,7 @@ void ProcessList_goThroughEntries(ProcessList* this) {
       struct kinfo_proc* kproc = &kprocs[i];
       
       bool preExisting = false;
-      Process* proc = ProcessList_getProcess(this, kproc->ki_pid, &preExisting, (Process_new_fn) FreeBSDProcess_new);
+      Process* proc = ProcessList_getProcess(this, kproc->ki_pid, &preExisting, (Process_New) FreeBSDProcess_new);
       FreeBSDProcess* fp = (FreeBSDProcess*) proc;
 
       proc->show = ! ((hideKernelThreads && Process_isKernelThread(proc)) || (hideUserlandThreads && Process_isUserlandThread(proc)));