test: check for success/failure of Windows CI unit tests (#4871)

* Disable the Windows CI unit tests "allowed to fail" workaround which
  was previously introduced in #4596.
* The runner hardware was upgraded, and the unit tests have been passing
  since then.

.github/workflows/windows.yml

@@ -91,11 +91,7 @@ jobs:
           # Hard code for now. Move to the matrix if varied options are needed
           cmake-args: '-Dassert=ON -Dreporting=OFF -Dunity=ON'
           cmake-target: install
-      - name: test (permitted to silently fail)
+      - name: test
         shell: bash
-        # Github runners are resource limited, which causes unit tests to fail
-        # (e.g. OOM). To allow forward progress until self-hosted runners are
-        # up and running reliably, allow the job to succeed even if tests fail.
-        continue-on-error: true
         run: |
           ${build_dir}/${{ matrix.configuration }}/rippled --unittest --unittest-jobs $(nproc)