[InputLabel] Fix classkey

Followup on mui#13428 with courtesy of mui#13229

Author: eps1lon

packages/material-ui/src/InputLabel/InputLabel.d.ts

@@ -15,11 +15,14 @@ export interface InputLabelProps extends StandardProps<FormLabelProps, InputLabe
 
 export type InputLabelClassKey =
   | 'root'
+  | 'focused'
+  | 'disabled'
+  | 'error'
+  | 'required'
   | 'formControl'
   | 'marginDense'
   | 'shrink'
   | 'animated'
-  | 'contained'
   | 'filled'
   | 'outlined';