Improvement: Make task handler configurable in airflow crds

As of now we addressed an issue of airflow logging with this PR.

However this is not the best possible solution. Ideally we'd like to have a situation like

          logging:
            containers:
              airflow:
                console:
                  level: INFO
                file:
                  level: INFO
                task:
                  level: INFO
                loggers:
                  ROOT:
                    level: INFO

in airflow CRD's, setting the handlers log level.

This comment is a working solution which needs to be implemented comparable to file and console.