BUG - Campaign Lifetime Budget Updates Does Not Send List

[jena-cameron]

Describe the bug

The Lifetime Budget update fails because it does not wrap the CampaignUpdateRequest in a list like the Daily Budget update.

If a Life time budget update is attempted we receive the following error:
Invalid type for variable 'campaign_update_request'. Required value type is list and passed type was CampaignUpdateRequest at ['campaign_update_request']

To Reproduce

Steps to reproduce the behavior:

1. The model/class with an issue is pinterest/ads/Campaigns.py
2. The function with an issue is set_lifetime_budget(self, new_spend_cap:int)
3. The arguments passed to the model/function are any positive integer value
4. The error thrown is 'Invalid type for variable 'campaign_update_request'. Required value type is list and passed type was CampaignUpdateRequest at ['campaign_update_request']

Expected behavior

I would expect the CampaignUpdateRequest object to be wrapped in a list object like the set_daily_budget function in the same class.

Screenshots

Additional Details (please complete the following information):

• OS and Version: MacOS and Windows
• SDK Version [all versions]

Additional Context
n/a

[t20]

Fixed in #140
Made a new release. Available in pinterest-api-sdk==0.2.4