Add gnome-shell 3.26 to compatibility list.

data/metadata.json.in

@@ -2,7 +2,7 @@
 "uuid": "@uuid@",
 "name": "OpenWeather",
 "description": "Weather extension to display weather information from https://openweathermap.org/ or https://darksky.net for almost all locations in the world.\nFor openweathermap.org, you can either use the extensions default-key or register at https://openweathermap.org/appid and set the appropriate switch in the preferences dialog to \"off\".\nFor Dark Sky you have to register at https://darksky.net/dev/register and get a personal API-key.\n\nSince version 29 this extensions uses coordinates to store the locations and makes the names editable to support multiple weather-providers!\nIf you update from versions prior to 29 to 29 or greater (with darksky.net - support) you have to recreate your locations.",
-"shell-version": [ "3.14", "3.16", "3.18", "3.20", "3.22", "3.24" ],
+"shell-version": [ "3.14", "3.16", "3.18", "3.20", "3.22", "3.24", "3.26" ],
 "localedir": "@LOCALEDIR@",
 "url": "@url@",
 "version": "@version@"