Bump plexapi from 4.15.7 to 4.15.9

[dependabot[bot]]

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Bumps plexapi from 4.15.7 to 4.15.9.

Release notes

Sourced from plexapi's releases.

4.15.9

Bug Fixes

• #1355 - Add weakref to parent for PlexClient

New Features

• #1353 - Add convenience method to return filter choice items

Improvements

• #1356 - Fix no timeout argument for gdm.scan()

4.15.8

Bug Fixes

• #1326 - Use 4k chunk size (powers of 2) for download
• #1329 - Also catch ValueError when converting timestamp to datetime
• #1336 - Fix MyPlexPinLogin doc strings
• #1347 - bugfix: pass existing filters for albums method of Artist
• #1350 - Fix: Update guid filter examples for fetchItems

New Features

• #1319 - Adds 2FA code input to tools/plex-gettoken.py
• #1327 - Add warning for ambiguous library title
• #1339 - Add SplitMergeMixin to Album

Improvements

• #1320 - fix(scripts): offset butler tasks to reduce ci random failures
• #1328 - Simplify building MediaPartStream objects
• #1340 - Refactor cast function in utils.py

Commits

• b51aa19 Release 4.15.9
• e161ce6 Fix no timeout argument for gdm.scan() (#1356)
• a85291e Add convenience method to return filter choice items (#1353)
• 36cbcd0 Add weakref to parent for PlexClient (#1355)
• fb1ce36 Release 4.15.8
• 4d01736 Bump nick-fields/retry from 2.9.0 to 3.0.0 (#1352)
• 07de1e2 Bump actions/cache from 3 to 4 (#1346)
• be9375a Bump pytest from 7.4.3 to 8.0.0 (#1349)
• eb9ead4 Bump flake8 from 6.1.0 to 7.0.0 (#1334)
• 08033e1 Bump pillow from 10.1.0 to 10.2.0 (#1331)
• Additional commits viewable in compare view

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