[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

src/aiida/orm/nodes/data/code/installed.py

@@ -140,7 +140,7 @@ def validate_filepath_executable(self):
                     if file_exists:
                         mode = transport.get_mode(str(self.filepath_executable))
                         # check if execute but is set
-                        user_has_execute = format(mode, "b")[6] == '1'
+                        user_has_execute = format(mode, 'b')[6] == '1'
 
         except Exception as exception:
             raise exceptions.ValidationError(