Merge pull request #1157 from mybatis/renovate/tomcat.version

fix(deps): update dependency org.apache.tomcat:tomcat to v11.0.15

Author: hazendaz

mybatis-spring-boot-samples/mybatis-spring-boot-sample-war/pom.xml

@@ -28,7 +28,7 @@
   <name>mybatis-spring-boot-sample-war</name>
   <properties>
     <tomcat.major.version>11</tomcat.major.version>
-    <tomcat.version>11.0.14</tomcat.version>
+    <tomcat.version>11.0.15</tomcat.version>
     <bnd.skip>true</bnd.skip>
 
     <module.name>org.mybatis.spring.boot.sample.war</module.name>