Fix: additional tipo case when using Pairs type inside of a redeemer or datum type

examples/acceptance_tests/119/validators/tests.ak

@@ -0,0 +1,12 @@
+pub type Thing =
+  Option<Pairs<ByteArray, Pairs<ByteArray, Int>>>
+
+validator foo_3 {
+  mint(redeemer: Thing, _policy_, _tx) {
+    redeemer == redeemer
+  }
+
+  else(_) {
+    fail
+  }
+}