Update openapi-core/src/main/java/io/ballerina/openapi/core/generator…

…s/client/AbstractFunctionSignatureGenerator.java

Co-authored-by: Sumudu Nissanka <[email protected]>

openapi-core/src/main/java/io/ballerina/openapi/core/generators/client/AbstractFunctionSignatureGenerator.java

@@ -53,7 +53,7 @@
  * This class represents the abstract function signature generator which is used to implement
  * the common functionalities of the function signature generators.
  *
- * @since 2.1.1
+ * @since 2.2.0
  */
 public abstract class AbstractFunctionSignatureGenerator implements FunctionSignatureGenerator {
     OpenAPI openAPI;