Bump plexapi from 4.15.0 to 4.15.4 (#2175)

* Bump plexapi from 4.15.0 to 4.15.4

Bumps [plexapi](https://github.com/pkkid/python-plexapi) from 4.15.0 to 4.15.4.
- [Release notes](https://github.com/pkkid/python-plexapi/releases)
- [Commits](https://github.com/pkkid/python-plexapi/compare/4.15.0...4.15.4)

---
updated-dependencies:
- dependency-name: plexapi
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update plexapi==4.15.4

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: JonnyWong16 <9099342+JonnyWong16@users.noreply.github.com>

[skip ci]

lib/plexapi/collection.py

@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from pathlib import Path
 from urllib.parse import quote_plus
 
 from plexapi import media, utils
@@ -399,7 +400,7 @@ class Collection(
     @deprecated('use editTitle, editSortTitle, editContentRating, and editSummary instead')
     def edit(self, title=None, titleSort=None, contentRating=None, summary=None, **kwargs):
         """ Edit the collection.
-        
+
             Parameters:
                 title (str, optional): The title of the collection.
                 titleSort (str, optional): The sort title of the collection.
@@ -560,3 +561,9 @@ class Collection(
             raise Unsupported('Unsupported collection content')
 
         return myplex.sync(sync_item, client=client, clientId=clientId)
+
+    @property
+    def metadataDirectory(self):
+        """ Returns the Plex Media Server data directory where the metadata is stored. """
+        guid_hash = utils.sha1hash(self.guid)
+        return str(Path('Metadata') / 'Collections' / guid_hash[0] / f'{guid_hash[1:]}.bundle')