Bump org.jsoup:jsoup from 1.20.1 to 1.21.1 in /generator

Bumps [org.jsoup:jsoup](https://github.com/jhy/jsoup) from 1.20.1 to 1.21.1.
- [Release notes](https://github.com/jhy/jsoup/releases)
- [Changelog](https://github.com/jhy/jsoup/blob/master/CHANGES.md)
- [Commits](jhy/jsoup@jsoup-1.20.1...jsoup-1.21.1)

---
updated-dependencies:
- dependency-name: org.jsoup:jsoup
  dependency-version: 1.21.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

generator/pom.xml

@@ -36,7 +36,7 @@
     <dependency>
       <groupId>org.jsoup</groupId>
       <artifactId>jsoup</artifactId>
-      <version>1.20.1</version>
+      <version>1.21.1</version>
     </dependency>
 
     <dependency>