Add serathius as milestone maintainer for sig instrumentation
@@ -137,6 +137,7 @@ teams:
- saad-ali # Storage
- saschagrunert # Branch Manager
- seans3 # CLI
+ - serathius # Instrumentation
- shyamjvs # Scalability
- smourapina # 1.18 Bug Triage Lead
- soltysh # CLI
