Upgrade Mybatis Spring Version to 2.1.0-SNAPSHOT

This fixes the current build problems, which are caused by removal of NestedIOException from Spring Framework.

Closes #1218
See mybatis/spring#663

pom.xml

@@ -25,11 +25,11 @@
 
 		<!-- dependency versions -->
 		<jsr305.version>3.0.2</jsr305.version>
-		<mybatis-spring.version>2.0.6</mybatis-spring.version>
-		<mybatis.version>3.5.6</mybatis.version>
+		<mybatis-spring.version>2.1.0-SNAPSHOT</mybatis-spring.version>
+		<mybatis.version>3.5.9</mybatis.version>
 
 		<!-- databases and jdbc drivers -->
-		<!-- not that these currently do not control the versions of databases used via Testcontainers for testing -->
+		<!-- note that these currently do not control the versions of databases used via Testcontainers for testing -->
 		<db2.version>11.5.5.0</db2.version>
 		<h2.version>1.4.200</h2.version>
 		<hsqldb.version>2.5.2</hsqldb.version>
@@ -152,6 +152,10 @@
 			<id>spring-libs-snapshot</id>
 			<url>https://repo.spring.io/libs-snapshot</url>
 		</repository>
+		<repository>
+			<id>oss-sonatype-snapshot</id>
+			<url>https://oss.sonatype.org/content/repositories/snapshots</url>
+		</repository>
 	</repositories>
 
 	<pluginRepositories>