Change workflow reference to local file

Author: mmmarinho

.github/workflows/sas-build-and-test.yml

@@ -4,4 +4,4 @@ on: [push, pull_request]
 
 jobs:
   sas_build_and_test:
-    uses: SmartArmStack/.github/workflows/sas-isolated-package-build.yml@main
+    uses: ./.github/workflows/sas-isolated-package-build.yml