Add new acceptance test scenario: 062

```
  Error:
    × Main thread panicked.
    ├─▶ at crates/uplc/src/optimize.rs:16:68
    ╰─▶ called `Result::unwrap()` on an `Err` value: FreeUnique(Name { text: "tests_bar", unique: Unique(1) })
  ```

examples/acceptance_tests/062/lib/tests.ak

@@ -0,0 +1,11 @@
+fn bar(n) {
+  n == 42
+}
+
+test foo() {
+  if bar(42) {
+    True
+  } else {
+    False
+  }
+}