Apply suggestion from @Copilot

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: grvillic

.github/workflows/smoke-test.yml

@@ -10,6 +10,11 @@ on:
   pull_request:
     paths:
       - "src/**"
+      - "Directory.Build.props"
+      - "Directory.Build.targets"
+      - "Directory.Packages.props"
+      - "global.json"
+      - ".github/workflows/smoke-test.yml"
   schedule:
     - cron: "0 0 * * *" # every day at midnight