AppVeyor: build only from master

ge0rdi · ge0rdi · commit 86447299b12f · 2022-08-21T14:00:12.000+02:00
We want to do official builds from master only.
PR builds should be not affected by this.
diff --git a/appveyor.yml b/appveyor.yml
@@ -1,4 +1,7 @@
 version: 4.4.{build}
+branches:
+  only:
+    - master
 pull_requests:
   do_not_increment_build_number: true
 skip_tags: true
