Bump tomcat9Version from 9.0.115 to 11.0.21

[dependabot]

Bumps tomcat9Version from 9.0.115 to 11.0.21.
Updates org.apache.tomcat:tomcat-catalina from 9.0.115 to 11.0.21

Updates org.apache.tomcat:tomcat-api from 9.0.115 to 11.0.21

Updates org.apache.tomcat:tomcat-util from 9.0.115 to 11.0.21

Updates org.apache.tomcat:tomcat-coyote from 9.0.115 to 11.0.21

Updates org.apache.tomcat.embed:tomcat-embed-core from 9.0.115 to 11.0.21

Updates org.apache.tomcat:tomcat-juli from 9.0.115 to 11.0.21

Updates org.apache.tomcat:tomcat-servlet-api from 9.0.115 to 11.0.21

Updates org.apache.tomcat:tomcat-jsp-api from 9.0.115 to 11.0.21

Updates org.apache.tomcat:tomcat-jdbc from 11.0.18 to 11.0.21

Updates org.apache.tomcat:tomcat-dbcp from 11.0.18 to 11.0.21

Updates org.apache.tomcat:tomcat-jasper from 11.0.18 to 11.0.21

Updates org.apache.tomcat:tomcat-jasper-el from 11.0.18 to 11.0.21

Updates org.apache.tomcat:tomcat-el-api from 11.0.18 to 11.0.21

Updates org.apache.tomcat:tomcat-tribes from 11.0.18 to 11.0.21

Updates org.apache.tomcat:tomcat-catalina-ha from 11.0.18 to 11.0.21

Updates org.apache.tomcat:tomcat-annotations-api from 11.0.18 to 11.0.21

Most Recent Ignore Conditions Applied to This Pull Request

Dependency Name	Ignore Conditions
org.apache.tomcat.embed:tomcat-embed-core	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-annotations-api	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-api	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-catalina	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-catalina-ha	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-coyote	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-dbcp	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-el-api	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-jasper	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-jasper-el	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-jdbc	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-jsp-api	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-juli	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-servlet-api	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-tribes	[>= 8.a0, < 9]
org.apache.tomcat:tomcat-util	[>= 8.a0, < 9]

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[dependabot]

OK, I won't notify you again about this release, but will get in touch when a new version is available. You can also ignore all major, minor, or patch releases for a dependency by adding an ignore condition with the desired update_types to your config file.

If you change your mind, just re-open this PR and I'll resolve any conflicts on it.