Add `jbonofre` as collaborator in `.asf.yml` (#2851)

Can't say no to a board member :)
diff --git a/.asf.yaml b/.asf.yaml
index c583869..ebc42ca 100644
--- a/.asf.yaml
+++ b/.asf.yaml
@@ -40,6 +40,9 @@
     rebase: true
     squash: true
 
+  collaborators:
+    - jbonofre
+
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