Set API version to minimum 3.0.0.

Author: ProjectInfinity

plugin.yml

@@ -1,12 +1,12 @@
 name: PocketVote
 main: ProjectInfinity\PocketVote\PocketVote
 version: 2.1.3
-api: [3.0.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5, 3.0.6]
+api: [3.0.0]
 author: ProjectInfinity
 permissions:
   pocketvote.admin:
     description: "Allows player to manage PocketVote"
     default: op
   pocketvote.vote:
     description: "Allows a player to use the /vote command"
-    default: true
+    default: true