Address review nits after validation feedback

Agent-Logs-Url: https://github.com/microsoft/regorus/sessions/f964122b-5af3-41a7-bc51-d87b7271a455

Co-authored-by: anakrish <35780660+anakrish@users.noreply.github.com>

tests/engine/mod.rs

@@ -163,7 +163,7 @@ fn prepare_then_compile_for_target() -> Result<()> {
            default allow := false
 
            allow if {
-             input.type == "test_resource"
+               input.type == "test_resource"
            }
         "#
         .to_string(),