Replace the group suggester's example name with Smith Mary - #1354

A rename with no behavior change. The group suggester's example name may be a real person's name, so it is replaced with Smith Mary / Mary Smith (Smith, Mary in comma form) in docs/suggest.rst, the Parser.suggest() release bullet, the bare-string error message in nameparser/_suggest.py, and tests/v2/test_suggest.py, test_reprs.py and test_types.py. The docs-rewrite PR #1353 doesn't touch these files, and none of its files holds the name.

Why this pair: mary is in COMMON_GIVEN_NAMES and smith is in neither COMMON_GIVEN_NAMES nor ROMANIZED_SURNAMES. That matches the names they replace, where the given name votes and the surname does not, so every name votes as the one it replaces.

Collision renames: four groups already held a Mary Smith, which the swap would have duplicated. There, the existing Mary Smith became Ruth Hollis (ruth is a listed given name, hollis is in no table). In one of those groups, the other name that held the old surname became Mary Hollis. In test_reprs.py, the words checked for absence from the repr are now ("Mary", "Kim", "Smith"), so the list holds no duplicate. No expected value changed except the name text.

How "no behavior change" was shown:

• A pytest plugin wrapped Parser.suggest and logged every call the three test modules make: the input names, the patch, each name's votes, each evidence's setting, decision, votes and note, and the disagreeing names. That came to 292 calls, run on master and on this branch.
• After mapping the old names to the new ones, the two logs are identical.
• Compared with the names ignored, 0 of 292 calls differ in votes, patch or evidence. Without the name mapping, 87 records differ, which shows the comparison can report a difference.
• The three modules give 837 passed both before and after.
• Re-ran the docs/suggest.rst doctest and the release bullet's example. suggest([...]).parser.parse("Smith Mary") gives given Mary, family Smith, and Parser().parse("Smith Mary") gives given Smith, family Mary, so the bullet's sentence still holds as written.

Checks: uv run pytest (45,962 passed), uv run pytest -n0 -m serial (35 passed), uv run mypy, uv run ruff check, sphinx-build -b doctest docs (0 failures), sphinx-build -W -b html docs, python -m doctest README.rst. git grep -i finds no trace of the old name anywhere in the tree.

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