fix(edge/aeec): make edge id generator field mandatory EE-6010 (#10545)

app/react/edge/components/EdgeScriptForm/EdgeScriptForm.validation.tsx

@@ -6,6 +6,13 @@ export function validationSchema(isNomadTokenVisible?: boolean) {
   return object().shape({
     allowSelfSignedCertificates: boolean(),
     envVars: string(),
+    edgeIdGenerator: string()
+      .required('Edge ID Generator is required')
+      .test(
+        'valid edge id generator',
+        'edge id generator cannot be empty',
+        (value) => !!(value && value.length)
+      ),
     ...nomadValidation(isNomadTokenVisible),
   });
 }