Jellyfin: Fix login for some instances

We weren't using the shared MA ClientSession for the login code.
This meant login was hitting some extra YARL validation when
instancing a ClientSession for a subpath on a url, causing
logins to fail.

music_assistant/server/providers/jellyfin/manifest.json

@@ -4,7 +4,7 @@
   "name": "Jellyfin Media Server Library",
   "description": "Support for the Jellyfin streaming provider in Music Assistant.",
   "codeowners": ["@lokiberra", "@Jc2k"],
-  "requirements": ["aiojellyfin==0.10.0"],
+  "requirements": ["aiojellyfin==0.10.1"],
   "documentation": "https://music-assistant.io/music-providers/jellyfin/",
   "multi_instance": true
 }

requirements_all.txt

@@ -4,7 +4,7 @@ Brotli>=1.0.9
 aiodns>=3.0.0
 aiofiles==24.1.0
 aiohttp==3.10.4
-aiojellyfin==0.10.0
+aiojellyfin==0.10.1
 aiorun==2024.8.1
 aioslimproto==3.0.1
 aiosonos==0.1.1