Fix shared code policy triggering on PRs with zero file changes (#64407)

Author: adityamandaleeka

.github/policies/resourceManagement.yml

@@ -1,11 +1,11 @@
 # Policybot docs live at https://eng.ms/docs/more/github-inside-microsoft/policies/resource-management
-id: 
+id:
 name: GitOps.PullRequestIssueManagement
 description: GitOps.PullRequestIssueManagement primitive
-owner: 
+owner:
 resource: repository
 disabled: false
-where: 
+where:
 configuration:
   resourceManagementConfiguration:
     scheduledSearches:
@@ -347,13 +347,12 @@ configuration:
       - payloadType: Pull_Request
       - isAction:
           action: Opened
-      - or:
-        - includesModifiedFiles:
-            files:
-            - src/Shared/Runtime
+      - includesModifiedFiles:
+          files:
+          - src/Shared/Runtime
       then:
       - addReply:
-          reply: Greetings human! You've submitted a PR that modifies code that is shared with https://github.com/dotnet/runtime . Please make sure you synchronize this code with the changes in that repo!
+          reply: Greetings! You've submitted a PR that modifies code that is shared with https://github.com/dotnet/runtime . Please make sure you synchronize this code with the changes in that repo!
       - addLabel:
           label: 'Attention: Shared Code Modified'
       description: '[Shared Code PRs] Flag PRs that affect shared code src/Shared/Runtime'
@@ -759,8 +758,8 @@ configuration:
       - enableAutoMerge:
           mergeMethod: "squash"
       description: '[Infrastructure PRs] Add area-infrastructure label to dependabot update Pull Requests & enable auto-merge'
-onFailure: 
-onSuccess: 
+onFailure:
+onSuccess: