Update resourceManagement.yml

Author: weshaggard

.github/policies/resourceManagement.yml

@@ -2544,7 +2544,7 @@ configuration:
       then:
       - if:
         - commentContains:
-            pattern: "$/pr RequestMerge^"
+            pattern: "^\/pr RequestMerge$"
             isRegex: true
         then:
         - addLabel: