treewide: add rewine as maintainer for some wayland-related packages

These packages were previously maintained by primeos who became inactive
and was removed in #415587, leaving some packages without a maintainer.

I'm taking over maintenance for these packages that I'm interested in:
- swayidle
- swaylock
- wayland-utils
- wev
- wlsunset
- wayland-protocols

pkgs/by-name/sw/swayidle/package.nix

···
     '';
     license = licenses.mit;
     mainProgram = "swayidle";
-    maintainers = with maintainers; [ ];
+    maintainers = with maintainers; [ rewine ];
     platforms = platforms.linux;
   };
 }

pkgs/by-name/sw/swaylock/package.nix

···
     mainProgram = "swaylock";
     license = licenses.mit;
     platforms = platforms.linux;
-    maintainers = with maintainers; [ ];
+    maintainers = with maintainers; [ rewine ];
   };
 }

pkgs/by-name/wa/wayland-utils/package.nix

···
     homepage = "https://gitlab.freedesktop.org/wayland/wayland-utils";
     license = licenses.mit; # Expat version
     platforms = platforms.linux;
-    maintainers = with maintainers; [ ];
+    maintainers = with maintainers; [ rewine ];
     mainProgram = "wayland-info";
   };
 }

pkgs/by-name/we/wev/package.nix

···
       X11 tool xev.
     '';
     license = licenses.mit;
-    maintainers = with maintainers; [ ];
+    maintainers = with maintainers; [ rewine ];
     platforms = platforms.linux;
     mainProgram = "wev";
   };

pkgs/by-name/wl/wlsunset/package.nix

···
     changelog = "https://git.sr.ht/~kennylevinsen/wlsunset/refs/${version}";
     license = lib.licenses.mit;
     platforms = lib.platforms.linux;
-    maintainers = with lib.maintainers; [ ];
+    maintainers = with lib.maintainers; [ rewine ];
     mainProgram = "wlsunset";
   };
 }

pkgs/development/libraries/wayland/protocols.nix

···
     homepage = "https://gitlab.freedesktop.org/wayland/wayland-protocols";
     license = lib.licenses.mit; # Expat version
     platforms = lib.platforms.all;
-    maintainers = with lib.maintainers; [ ];
+    maintainers = with lib.maintainers; [ rewine ];
     pkgConfigModules = [ "wayland-protocols" ];
   };