update v1.33 Release Signal Shadows

Author: wendy-ha18

config/kubernetes/sig-release/teams.yaml

@@ -314,6 +314,11 @@ teams:
             members:
             - Vyom-Yadav # 1.33 Release Lead Shadow
             - wendy-ha18 # 1.33 Release Signal Lead
+            - tico88612 # 1.33 Release Signal Shadow
+            - stmcginnis # 1.33 Release Signal Shadow
+            - Rajalakshmi-Girish # 1.33 Release Signal Shadow
+            - nitishfy # 1.33 Release Signal Shadow
+            - elieser1101 # 1.33 Release Signal Shadow
             privacy: closed
           release-team-docs:
             description: Members of the Docs team for the current release cycle.