Fix: Web API Changes of February 2026 (#1228)

* #1227 - Updated methods related to API changes

- Updated /tracks endpoints to /items
- Switching IDs to URIs for /me/library endpoint
- Fixed playlist limit to 50 (according to API)
- Added warnings for deprecated methods

* #1227 - Formatted code and updated changelog

* #1227 - Improved HTTP URLs computation with kwargs

* bump version to 2.26.0

---------

Co-authored-by: Niko <github@dieserniko.link>

setup.py

@@ -21,7 +21,7 @@ extra_reqs = {
 
 setup(
     name='spotipy',
-    version='2.25.2',
+    version='2.26.0',
     description='A light weight Python library for the Spotify Web API',
     long_description=long_description,
     long_description_content_type="text/markdown",