twister tests: Let's use native_sim instead of native_posix

native_posix is being replaced with native_sim, let's
use native_sim instead in twister tests.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
diff --git a/scripts/tests/twister_blackbox/test_data/tests/always_build_error/dummy/test_data.yaml b/scripts/tests/twister_blackbox/test_data/tests/always_build_error/dummy/test_data.yaml
index af7ba6f..db29b1a 100644
--- a/scripts/tests/twister_blackbox/test_data/tests/always_build_error/dummy/test_data.yaml
+++ b/scripts/tests/twister_blackbox/test_data/tests/always_build_error/dummy/test_data.yaml
@@ -1,8 +1,8 @@
 tests:
   always_fail.dummy:
     platform_allow:
-      - native_posix
+      - native_sim
       - qemu_x86
       - qemu_x86_64
     integration_platforms:
-      - native_posix
+      - native_sim