INFRA-627 | Abhishek | Add regex for validation of database schema name

src/models/ManifestValidationSchema.ts

@@ -59,7 +59,7 @@ const deploymentValidationSchema = yup.object({
 const databaseValidationSchema = yup.object({
     instanceName: yup.string().required('is Required'),
     sizeInGb: yup.number().required('is Required').min(20).max(500),
-    dbNames: yup.array().of(yup.string().required('is Required')),
+    dbNames: yup.array().of(yup.string().matches(/^[a-z_.]*$/,'Should have alphabets and underscore only').required('is Required')),
 })
 
 const extraResourcesValidationSchema = yup.object({