Add acceptance test scenario: 037

```
  Error:
    × Main thread panicked.
    ├─▶ at /Users/ktorz/Documents/Projects/aiken-lang/aiken/crates/aiken-
    │   project/src/lib.rs:701:36
    ╰─▶ called `Result::unwrap()` on an `Err` value: FreeUnique(Name { text:
        "_not", unique: Unique(1) })
  ```

examples/acceptance_tests/037/lib/tests.ak

@@ -0,0 +1,3 @@
+test foo() {
+  not(False)
+}