Add Max Base as collaborator

I propose to add @BaseMax as collaborator, to help with bug triage and
project management.
Max is a very prolific Open Source contributor and have helped many
projects (see [his profile](https://github.com/basemax)).

**Note**: To prevent misunderstandings, "contributor" is not the same
thing as "committer" and IMHO this PR does not require a PMC vote.

Author: ppkarwasz

.asf.yaml

@@ -55,6 +55,9 @@ github:
     - logger
     - api
     - syslog
+  # People helping with triaging and Project Management
+  collaborators:
+    - basemax
 
   # Enforce squashing while merging PRs.
   # Otherwise, the git log gets polluted severely.