fix(video): updated endpoints for adding/removing streams from Archive

[conshus]

adds "s" to endpoints to match https://developer.vonage.com/en/api/video#patch-v2-project-application_id-archive-archive_id-streams

Description

adds "s" to endpoints to match https://developer.vonage.com/en/api/video#patch-v2-project-application_id-archive-archive_id-streams

Motivation and Context

Right now, the current endpoints return 404.

Testing Details

Example Output or Screenshots (if appropriate)

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [ ] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have read the CONTRIBUTING document.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 84.61%. Comparing base (fbe1c27) to head (6e04c6b).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## 3.x #922 +/- ## ======================================= Coverage 84.61% 84.61% ======================================= Files 122 122 Lines 1775 1775 Branches 363 363 ======================================= Hits 1502 1502 Misses 273 273 ```

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