chore: use PascalCase for utility file

src/cloud-element-templates/Helper.js

@@ -3,7 +3,7 @@ import { getBusinessObject } from 'bpmn-js/lib/util/ModelUtil';
 import { is, isAny } from 'bpmn-js/lib/util/ModelUtil';
 
 import { v4 as uuid } from 'uuid';
-import { isSpecialFeelProperty, toFeelExpression } from './util/feelUtil';
+import { isSpecialFeelProperty, toFeelExpression } from './util/FeelUtil';
 
 /**
  * The BPMN 2.0 extension attribute name under

src/cloud-element-templates/properties-panel/properties/custom-properties/NumberProperty.js

@@ -1,7 +1,7 @@
 import { FeelNumberEntry, NumberFieldEntry } from '@bpmn-io/properties-panel';
 import { useService } from 'bpmn-js-properties-panel';
 import { propertyValidator, usePropertyAccessors } from './util';
-import { isSpecialFeelProperty } from '../../../util/feelUtil';
+import { isSpecialFeelProperty } from '../../../util/FeelUtil';
 import { PropertyDescription } from '../../../../components/PropertyDescription';
 import { PropertyTooltip } from '../../components/PropertyTooltip';
 import { useCallback } from '@bpmn-io/properties-panel/preact/hooks';

src/cloud-element-templates/properties-panel/properties/custom-properties/util.js

@@ -1,6 +1,6 @@
 import { find, groupBy } from 'min-dash';
 import { getPropertyValue, setPropertyValue, validateProperty } from '../../../util/propertyUtil';
-import { isSpecialFeelProperty, toFeelExpression } from '../../../util/feelUtil';
+import { isSpecialFeelProperty, toFeelExpression } from '../../../util/FeelUtil';
 
 import { useCallback, useState } from '@bpmn-io/properties-panel/preact/hooks';