Run tests with --drdr (#720)

Author: jackfirth

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           version: stable
       - run: raco pkg install --batch --auto --link --name resyntax
-      - run: raco test --package resyntax
+      - run: raco test --drdr --package resyntax
 
   code-coverage:
     name: Code Coverage