chore: bump chromium to 126.0.6478.234 (31-x-y) (#43252)

chore: bump chromium in DEPS to 126.0.6478.234

Co-authored-by: electron-roller[bot] <84116207+electron-roller[bot]@users.noreply.github.com>

DEPS

@@ -2,7 +2,7 @@ gclient_gn_args_from = 'src'
 
 vars = {
   'chromium_version':
-    '126.0.6478.226',
+    '126.0.6478.234',
   'node_version':
     'v20.16.0',
   'nan_version':