[ci] Try workflow trigger on pull_request_target

Signed-off-by: Viet Nguyen Duc <[email protected]>

Author: VietND96

.github/workflows/build-test.yml

@@ -26,7 +26,7 @@ on:
     paths-ignore:
       - '**.md'
       - '.*'
-  pull_request:
+  pull_request_target:
     paths-ignore:
       - '**.md'