ci: dont comment empty summary tables on PR (#36328)

### Issue # (if applicable)

Closes #<issue number here>.

### Reason for this change



### Description of changes



### Describe any new or updated permissions being added




### Description of how you validated changes



### Checklist
- [ ] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

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*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: kumvprat

.github/workflows/security-report.yml

@@ -45,6 +45,7 @@ jobs:
           group_suite: true
           include_skipped: false
           check_title_template: '{{TEST_NAME}}'
+          include_empty_in_summary: false
 
       - name: Publish Security Test Results for resolved templates
         uses: mikepenz/action-junit-report@v6
@@ -63,3 +64,4 @@ jobs:
           group_suite: true
           include_skipped: false
           check_title_template: '{{TEST_NAME}}'
+          include_empty_in_summary: false