updating Release Signal shadows

Author: drewhagen

config/kubernetes/sig-release/teams.yaml

@@ -318,7 +318,7 @@ teams:
             members:
             - drewhagen # 1.32 Release Signal Lead
             - knabben # 1.32 Release Signal Shadow
-            - michaelfromyeg # 1.32 Release Signal Shadow
+            - SimonBaeumer # 1.32 Release Signal Shadow
             - tico88612 # 1.32 Release Signal Shadow
             - Vyom-Yadav # 1.32 Release Lead Shadow + Release Signal Temp
             - wendy-ha18 # 1.32 Release Signal Shadow