File _patchinfo of Package patchinfo.21891

<patchinfo incident="21891">
  <packager>witekbedyk</packager>
  <rating>low</rating>
  <category>recommended</category>
  <summary>Recommended update for grafana</summary>
  <description>This update for grafana fixes the following issue:

- Add URL to package source code in the login page footer.
</description>
</patchinfo>