Moved env variables into function.

src/bot/features/getGroupStatsCommand.ts

@@ -9,8 +9,6 @@ const composer = new Composer<Context>();
 
 const feature = composer.chatType(["group", "supergroup"]);
 
-const mutationKey = process.env.GRAPHQL_MUTATION_KEY || "";
-
 /**
  * What triggers this feature and adds to the log when it has been triggered.
  * The trigger is the command "/groupStats"
@@ -19,6 +17,8 @@ feature.hears(
   /^\/groupStats/,
   logHandle("groups-stats-command"),
   async (ctx: Context) => {
+    const mutationKey = process.env.GRAPHQL_MUTATION_KEY || "";
+
     await urql.mutation(increment, { trigger: true, mutationKey });
 
     // Checks if the context includes a message property.