chore(deps): bump net.sf.jasperreports:jasperreports in /dhis-2 (#15820)

Bumps [net.sf.jasperreports:jasperreports](https://github.com/TIBCOSoftware/jasperreports) from 6.20.6 to 6.21.0.
- [Release notes](https://github.com/TIBCOSoftware/jasperreports/releases)
- [Commits](https://github.com/TIBCOSoftware/jasperreports/commits)

---
updated-dependencies:
- dependency-name: net.sf.jasperreports:jasperreports
  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>

dhis-2/pom.xml

@@ -144,7 +144,7 @@
     <jclouds.version>2.5.0</jclouds.version>
 
     <!-- Reporting -->
-    <jasperreports.version>6.20.6</jasperreports.version>
+    <jasperreports.version>6.21.0</jasperreports.version>
     <jfreechart.version>1.5.4</jfreechart.version>
     <htmlparser.version>2.1</htmlparser.version>
     <htmllexer.version>2.1</htmllexer.version>