refactor: move es-diagnostics image to values.yaml
What
Move the image
definition of the cronjob
in the values.yaml.gotmpl
Why
All environments are using the same image, so we are duplicating code,
moving it to values.yaml.gotmpl
DRYs up the code, whilst still allowing us to override the tag
on a specific environment if
we want.
Signed-off-by: Steve Azzopardi sazzopardi@gitlab.com