TEST: Enable added test case

Author: Shaikh-Ubaid

integration_tests/CMakeLists.txt

@@ -419,6 +419,7 @@ RUN(NAME str_to_list_cast    LABELS cpython llvm c)
 
 RUN(NAME test_package_01     LABELS cpython llvm)
 RUN(NAME test_pkg_lpdraw     LABELS cpython llvm wasm)
+RUN(NAME test_pkg_lnn        LABELS cpython llvm)
 
 RUN(NAME generics_01         LABELS cpython llvm c)
 RUN(NAME generics_02         LABELS cpython llvm c)