deinitializing locks at program exit (#19043)

* deinitializing locks at program exit

* deinitLock shouldn't be called for js backend I guess...

* I suppose this is the best way to detect the
ewruntime option

* I guess I need these guards here too...

* fixing merge conflict

lib/std/exitprocs.nim

@@ -44,6 +44,9 @@ proc callClosures() {.noconv.} =
       of kClosure: fun.fun1()
       of kNoconv: fun.fun2()
 
+  when not defined(js) and not defined(nimOwnedEnabled):
+    deinitLock(gFunsLock)
+
 template fun() =
   if gFuns.len == 0:
     addAtExit(callClosures)