Add self to sig-instrumentation leads

Author: richabanker

OWNERS_ALIASES

@@ -312,6 +312,7 @@ aliases:
     - serathius
     - dgrisonnet
     - rexagod
+    - richabanker
   sig-instrumentation-reviewers:
     - dashpole
     - s-urbaniak
@@ -323,6 +324,7 @@ aliases:
     - pohly
     - mengjiao-liu
     - rexagod
+    - richabanker
   # sig-instrumentation-emeritus
   # - brancz
   # - DirectXMan12
@@ -526,6 +528,7 @@ aliases:
     - mrunalp # Node
     - msau42 # Storage
     - rexagod # Instrumentation
+    - richabanker # Instrumentation
     - saad-ali # Storage
     - sergeykanzhelev # Node
     - shaneutt # Network