support ajv-errors for scaffolder validation

Signed-off-by: Matt Benson <gudnabrsam@gmail.com>

plugins/scaffolder-react/package.json

@@ -78,6 +78,7 @@
     "@rjsf/validator-ajv8": "5.18.5",
     "@types/json-schema": "^7.0.9",
     "@types/react": "^16.13.1 || ^17.0.0 || ^18.0.0",
+    "ajv-errors": "^3.0.0",
     "classnames": "^2.2.6",
     "flatted": "3.3.1",
     "humanize-duration": "^3.25.1",

plugins/scaffolder-react/src/next/components/Stepper/Stepper.tsx

@@ -35,7 +35,7 @@ import {
 } from './createAsyncValidators';
 import { ReviewState, type ReviewStateProps } from '../ReviewState';
 import { useTemplateSchema, useFormDataFromQuery } from '../../hooks';
-import validator from '@rjsf/validator-ajv8';
+import { customizeValidator } from '@rjsf/validator-ajv8';
 import { useTransformSchemaToProps } from '../../hooks/useTransformSchemaToProps';
 import { hasErrors } from './utils';
 import * as FieldOverrides from './FieldOverrides';
@@ -50,6 +50,10 @@ import { ReviewStepProps } from '@backstage/plugin-scaffolder-react';
 import { ErrorListTemplate } from './ErrorListTemplate';
 import { makeStyles } from '@material-ui/core/styles';
 import { PasswordWidget } from '../PasswordWidget/PasswordWidget';
+import ajvErrors from 'ajv-errors';
+
+const validator = customizeValidator();
+ajvErrors(validator.ajv);
 
 const useStyles = makeStyles(theme => ({
   backButton: {