depfixer: Do not try to fix rpaths of dlls

mesonbuild/scripts/depfixer.py

@@ -432,6 +432,9 @@ def fix_rpath(fname, new_rpath, final_path, install_name_mappings, verbose=True)
     # Static libraries never have rpaths
     if fname.endswith('.a'):
         return
+    # DLLs never have rpaths
+    if fname.endswith('.dll'):
+        return
     try:
         if fname.endswith('.jar'):
             fix_jar(fname)