Upgrade to MySql R2DBC Driver 1.3.1.

Closes #1976

Author: mp911de

pom.xml

@@ -46,7 +46,7 @@
 		<r2dbc-h2.version>1.0.0.RELEASE</r2dbc-h2.version>
 		<r2dbc-mariadb.version>1.1.4</r2dbc-mariadb.version>
 		<r2dbc-mssql.version>1.0.2.RELEASE</r2dbc-mssql.version>
-		<r2dbc-mysql.version>1.3.0</r2dbc-mysql.version>
+		<r2dbc-mysql.version>1.3.1</r2dbc-mysql.version>
 		<oracle-r2dbc.version>1.2.0</oracle-r2dbc.version>
 
 		<!-- test dependencies -->