Add pyspark to add-ons options

[merelcht]

Description

pyspark should be added to the add-ons options, allowing users to get setup for pyspark (see #2506 (comment)). This option should make use of the new spaceflights-pyspark starter: #2984

When a user select pyspark they should get the config needed to run Kedro project with pyspark. This shouldn't include the example pipelines. This will happen in a follow up ticket.

Possible Implementation

This solution is likely going to be the same as for the other add-ons work, leveraging the post-project hooks. Since we'd use the spaceflights-pyspark starter and not the regular template, we probably need to copy some of the logic from the post-project hook in the regular template to the starter.

Possible Alternatives

N/A

[SajidAlamQB]

Completed in: #3169