maint: Fix codespell

We really need to rename the master branch, to fit with other GNOME repos
... hope we can get some of those open PRs merged first!

Unreviewed, pushing to fix build.

Author: ptomato

NEWS

@@ -55,7 +55,7 @@ Version 1.81.1
   * Incorrect UnixOutputStream warning [#610, !928, Philip Chimento]
   * Various maintenance [!929, !931, Philip Chimento]
   * Docs: Various markdown fixes [!930, Frank Dana]
-  * Some build fixes for the master (and gnome-46) branches for Visual
+  * Some build fixes for the main (and gnome-46) branches for Visual
     Studio [!932, Chun-wei Fan]
   * GJS doesn't log undefined values [#621, !933, Gary Li]
   * property objects are printed as empty js objects [#622, !934, Gary