Fix link.py after two conflicting changes raced while landing (#23599)

See #23593 and #23515

tools/link.py

@@ -2795,7 +2795,7 @@ def process_libraries(options, flags):
       continue
 
     static_lib = f'lib{lib}.a'
-    if not settings.RELOCATABLE and not find_library(static_lib, state.lib_dirs):
+    if not settings.RELOCATABLE and not find_library(static_lib, options.lib_dirs):
       # Normally we can rely on the native linker to expand `-l` args.
       # However, emscripten also supports `.so` files that are actually just
       # regular object file.  This means we need to support `.so` files even