[spec] Bump copyright date (#1896)

Author: micttyoid

document/core/conf.py

@@ -60,7 +60,7 @@
 name = 'WebAssembly'
 project = u'WebAssembly'
 title = u'WebAssembly Specification'
-copyright = u'2024, WebAssembly Community Group'
+copyright = u'2025, WebAssembly Community Group'
 author = u'WebAssembly Community Group'
 editor = u'Andreas Rossberg (editor)'
 logo = 'static/webassembly.png'