Update drone to also run ipv6 branch

.drone.yml

@@ -46,6 +46,7 @@ trigger:
     - refs/heads/beta
     - refs/heads/release
     - refs/heads/main
+    - refs/heads/ipv6
     - refs/pull/*/head
 
 ---
@@ -100,6 +101,7 @@ trigger:
     - refs/heads/beta
     - refs/heads/release
     - refs/heads/main
+    - refs/heads/ipv6
     - refs/pull/*/head
 
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