Add Michał Pałka to SIP Committee members' list

Author: prolativ

_sips/process-specification.md

@@ -265,6 +265,7 @@ The current committee members are:
 - Haoyi Li ([@lihaoyi](https://github.com/lihaoyi)), Databricks
 - Lukas Rytz ([@lrytz](https://github.com/lrytz)), Lightbend
 - Martin Odersky ([@odersky](https://github.com/odersky)), EPFL
+- Michał Pałka ([@prolativ](https://github.com/prolativ)), VirtusLab
 - Oron Port ([@soronpo](https://github.com/soronpo)), DFiant Inc
 - Sébastien Doeraene ([@sjrd](https://github.com/sjrd)), EPFL