Fix EE detail Edit when include_tags not an array

[himdel]

Creating a remote execution environmnent and then editing it already works (as the UI will always send include_tags: [], exclude_tags: [] when not set).

But creating one through the API, you can skip include_tags or exclude_tags without getting a validation error.
After that, editing that EE only works from the list screen, but yields a blank screen when editing from the detail screen.

Fixing by adding a || [] to the detail screen as well.

No-Issue

(corresponding code in list screen edit: https://github.com/ansible/ansible-hub-ui/blob/master/src/containers/execution-environment-list/execution_environment_list.tsx#L433-L434 )

[himdel]

Reproduce..

REGISTRY_PK=`curl 'http://localhost:8002/api/automation-hub/_ui/v1/execution-environments/registries/' \
  -u admin:admin \
  -H 'Content-Type: application/json' \
  --data-raw '{"name":"docker1736","url":"https://registry.hub.docker.com/"}' \
  | jq -r .pk`

curl 'http://localhost:8002/api/automation-hub/_ui/v1/execution-environments/remotes/' \
  -u admin:admin \
  -H 'Content-Type: application/json' \
  --data-raw '{"name":"evil1736","upstream_name":"library/alpine","registry":"'"$REGISTRY_PK"'"}'

(creates a docker1736 RR, and an evil1736 remote EE)

Then go to EE list, click evil1736, and click Edit on the detail screen.
Expected: form
Actual: blank screen