ci: change path to absolute

Author: anfibiacreativa

.github/workflows/security-check.yaml

@@ -15,6 +15,6 @@ jobs:
         uses: microsoft/[email protected]
         id: run_psrule
         with:
-          source: '.ps-rule'
+          source: 'https://github.com/Azure-Samples/azure-search-openai-javascript/.github/.ps-rule'
           modules: 'PSRule.Rules.Azure'
           baseline: 'TemplateValidation.MI_2024_10'