Add pbd section on services to fix lint checking issues

[jemacchi]

When applying a lint checker, then eventually you can get this error message.

Error: template: geoservercloud/charts/geoservercloud/charts/geoserver/templates/pdb.yaml:4:88: executing "geoservercloud/charts/geoservercloud/charts/geoserver/templates/pdb.yaml" at <$serviceDefinition.pdb>: wrong type for value; expected map[string]interface {}; got interface {}
helm.go:84: [debug] template: geoservercloud/charts/geoservercloud/charts/geoserver/templates/pdb.yaml:4:88: executing "geoservercloud/charts/geoservercloud/charts/geoserver/templates/pdb.yaml" at <$serviceDefinition.pdb>: wrong type for value; expected map[string]interface {}; got interface {}

it's not happening if your values.yaml file includes a pbd section, which is not empty. But if it's empty then the template fails to check when the value is not present.
https://github.com/camptocamp/helm-custom-pod/blob/master/templates/pdb.yaml

Adding the pdb section with enable:false values in the helm-geoserver-cloud values.yaml file fixed the situation.
Note: not sure if it should be considered into the helm-custom-pod repo as an expected behavior or not.

[jemacchi]

hi @danduk82 @sbrunner could you please confirm if this PR is valid ?
If not explicitly added the mentioned section, then the pbd.yml template could trigger that failure (in a lint check).
If it's not something we should fix/add/consider in the template, then we can consider it as a problem on the lint side.
I would like to close this PR (with a confirmation of change or as invalid).

[sbrunner]

If it's not something we should fix/add/consider in the template

At first look the linter is too bad, the expression is correct :-(

Personally, I didn't use this tools because he reports nearly only false positive :-(

In this case, the default value is true :-)

[danduk82]

will not be applied, can be fixed in the value files