Revoke registry privileges for github.com/ajangrahmat and github.com/kelasrobot

`github.com/ajangrahmat` has established a pattern of irresponsible behavior in the Arduino Library Manager Registry
repository, related to the libraries of the associated organization `github.com/kelasrobot`. They continued this
behavior even after the bot and human maintainer made significant efforts to guide them to responsible use.

Author: per1234

.github/workflows/assets/accesslist.yml

@@ -12,6 +12,14 @@
   name: 7Semi
   access: deny
   reference: https://github.com/arduino/library-registry/pull/5734#pullrequestreview-2548818476
+- host: github.com
+  name: ajangrahmat
+  access: deny
+  reference: https://github.com/arduino/library-registry/pull/5706#issuecomment-2588923290
+- host: github.com
+  name: kelasrobot
+  access: deny
+  reference: https://github.com/arduino/library-registry/pull/5706#issuecomment-2588923290
 - host: github.com
   name: YoavPaz
   access: deny