Fixes #35676 - Handle whitespace issue in Python package types

[pavanshekar]

What are the changes introduced in this pull request?

Added handling to ensure that whitespace is removed from Python package types to prevent issues when creating a new repo.

Considerations taken when implementing this change?

Ensures consistency in handling Python package types while maintaining compatibility with the existing repo creation flow.

What are the testing steps for this pull request?

1. Go to Products -> Create a new product
2. Go to Repositories
3. Click on New Repository
4. Add all the required details by selecting the type as Python
5. Select Save -> You should be able to create a new repository without any errors
6. For verification: After creation, Select action -> Sync now - The sync task should be completed successfully and you should be able to see the synced data.

[sjha4]

Could you also remove the whitespace from help text here:

katello/lib/katello/repository_types/python.rb

Line 28 in b959a02

generic_remote_option :package_types, title: N_("Package Types"), type: Array, input_type: "text", delimiter: ",", default: [],

for people ctrl c +v ing and updating that list like me.

Another thing to fix is the update, where one can update the package type list to again contain whitespaces causing sync errors down the line. Add a similar logic for that. Bonus points for reusing the same strip logic for both methods.

[pavanshekar]

I have made the suggested changes and pushed the updated code.

[sjha4]

Can create and update python repos with whitespaces in package types param. Ack 👍🏼