[fluentd] Use upstream chart

Set CERN default options for upstream fluentd

Signed-off-by: Diogo Guerra dy090.guerra@gmail.com

Related:

• https://gitlab.cern.ch/kubernetes/project/-/issues/184
• https://gitlab.cern.ch/kubernetes/project/-/issues/176

Closes: https://gitlab.cern.ch/kubernetes/project/-/issues/197