Log Message:
Update ocaml-pa_ounit to 112.17.00.

Changes from previous:
----------------------
## 112.17.00

- only spend time to format test description when tests are run

## 111.28.00

- Added a flag to disable embedding of unit tests/inline benchmarks.
  (`janestreet/core_kernel#13`)

## 109.53.00

- Bump version number

## 109.52.00

- Added `-stop-on-error` flag to `inline_test_runner`, to stop running
  tests at the first failure.

    This is useful if the remaining tests are likely to fail too or just
    long to run.

## 109.36.00

- Simplified so that it does not generate unnecessary top-level bindings.

    It had been hiding quite a few `unused import` warnings.