try to fix auto-merge

Author: gewarren

.github/policies/auto-merge.yml

@@ -19,6 +19,8 @@ configuration:
         - or:
             - isActivitySender:
                 user: dotnet-policy-service[bot]
+            - isActivitySender:
+                user: dotnet-policy-service
       then:
         - enableAutoMerge:
             mergeMethod: Squash
@@ -33,8 +35,11 @@ configuration:
             label: ':octocat: auto-merge'
         - targetsBranch:
             branch: live
-        - isActivitySender:
-            user: dotnet-policy-service[bot]
+        - or:
+            - isActivitySender:
+                user: dotnet-policy-service[bot]
+            - isActivitySender:
+                user: dotnet-policy-service
       then:
         - enableAutoMerge:
             mergeMethod: Merge