test: fix running tests

justfile

@@ -1,3 +1,5 @@
+all: test docs
+
 # Compile all documentation as in proposals and design documents, placing them under `docs/compiled`.
 docs:
   #!/usr/bin/env nu
@@ -9,3 +11,7 @@ docs:
     )
     mv $pdf docs/compiled
   } | ignore
+
+test:
+  #!/usr/bin/env nu
+  cargo nextest run