Bump version to 26.1.1

Release includes:
- Fix quote method for MySQL compatibility
- Add resource/resources methods for 0.9.x backward compatibility
- Make apply_filters public for 0.9.x compatibility
- Add PORO support in find_fragments

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: takaokouji

lib/jsonapi/resources/version.rb

@@ -1,5 +1,5 @@
 module JSONAPI
   module Resources
-    VERSION = '26.1.0'
+    VERSION = '26.1.1'
   end
 end