fix: add validation helpers to enforce regex validations for name fields

Signed-off-by: vikhy-aws <191836418+vikhy-aws@users.noreply.github.com>

src/main/kotlin/org/opensearch/commons/utils/ValidationHelpers.kt

@@ -91,8 +91,6 @@ fun isValidName(name: String): Boolean {
     return name.matches(regex)
 }
 
-
-
 fun getInvalidNameChars(): String {
     return INVALID_NAME_CHARS
 }