[FEATURE] Santise input of `brickflow_internal_only_run_tasks` parameter

[maxim-mityutko]

Is your feature request related to a problem? Please describe. This parameter expects coma delimited list of tasks that should be executed. I noticed that on multiple occasions engineers provide this list with (a) trailing space after coma, e.g task_1, task_2; (b) in python list form, e.g. ['task_1', 'task_2']

Cloud Information

• [x] AWS
• [x] Azure
• [x] GCP
• [x] Other

Describe the solution you'd like Cleanup the input while parsing the contents of brickflow_internal_only_run_tasks parameter:

• trim entries
• check if value starts and ends with '[' and ']' and do json.loads

Feels like https://github.com/Nike-Inc/brickflow/blob/b07ebfb88517d03dc0191cf587a84b7e6e54b82d/brickflow/engine/task.py#L677-L690 is the logical place for this.

Describe alternatives you've considered Educating users is always an option.

Additional context Add any other context or screenshots about the feature request here.

[asingamaneni]

This is a good idea and needed.