module: increase code coverage of cjs loader

Add test cases to cover uncovered wrap and wrapper getters.

Refs: https://coverage.nodejs.org/coverage-99268b1e996d13a0/lib/internal/modules/cjs/loader.js.html#L153

PR-URL: https://github.com/nodejs/node/pull/27898


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jan Krems <jan.krems@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>