Bump jwks-rsa from 0.20.2 to 0.21.1 (#252)

Bumps [jwks-rsa](https://github.com/auth0/jwks-rsa-java) from 0.20.2 to 0.21.1.
- [Release notes](https://github.com/auth0/jwks-rsa-java/releases)
- [Changelog](https://github.com/auth0/jwks-rsa-java/blob/master/CHANGELOG.md)
- [Commits](auth0/jwks-rsa-java@0.20.2...0.21.1)

---
updated-dependencies:
- dependency-name: com.auth0:jwks-rsa
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Diff for: pom.xml

@@ -103,7 +103,7 @@
         <dependency>
             <groupId>com.auth0</groupId>
             <artifactId>jwks-rsa</artifactId>
-            <version>0.20.2</version>
+            <version>0.21.1</version>
             <exclusions>
                 <exclusion>
                     <groupId>com.google.guava</groupId>