Bump jjwt.version from 0.12.5 to 0.12.6

Bumps `jjwt.version` from 0.12.5 to 0.12.6.

Updates `io.jsonwebtoken:jjwt-api` from 0.12.5 to 0.12.6
- [Release notes](https://github.com/jwtk/jjwt/releases)
- [Changelog](https://github.com/jwtk/jjwt/blob/master/CHANGELOG.md)
- [Commits](jwtk/jjwt@0.12.5...0.12.6)

Updates `io.jsonwebtoken:jjwt-impl` from 0.12.5 to 0.12.6
- [Release notes](https://github.com/jwtk/jjwt/releases)
- [Changelog](https://github.com/jwtk/jjwt/blob/master/CHANGELOG.md)
- [Commits](jwtk/jjwt@0.12.5...0.12.6)

Updates `io.jsonwebtoken:jjwt-jackson` from 0.12.5 to 0.12.6

---
updated-dependencies:
- dependency-name: io.jsonwebtoken:jjwt-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: io.jsonwebtoken:jjwt-impl
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: io.jsonwebtoken:jjwt-jackson
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

pom.xml

@@ -20,7 +20,7 @@
     <maven-checkstyle-plugin.version>3.4.0</maven-checkstyle-plugin.version>
     <checkstyle.version>10.6.0</checkstyle.version>
     <lifecycle-mapping.version>1.0.0</lifecycle-mapping.version>
-    <jjwt.version>0.12.5</jjwt.version>
+    <jjwt.version>0.12.6</jjwt.version>
   </properties>
   <organization>
     <name>Berry Cloud Ltd</name>