Modify access rules

project.config

diff --git a/project.config b/project.config
index 4b6a3a6..7651278 100644
--- a/project.config
+++ b/project.config
@@ -73,7 +73,9 @@
 	create = group mdb/quiche-dev
 	push = group mdb/quiche-dev
 	pushMerge = group mdb/quiche-dev
+	delete = group mdb/quiche-dev
 [access "refs/interop/*"]
 	create = group mdb/quiche-dev
 	push = group mdb/quiche-dev
 	pushMerge = group mdb/quiche-dev
+	delete = group mdb/quiche-dev