12.2
docs: Fix capitalization mistakes.
Add test coverage for parsers in tools/lib.
capitalization: Prune unused phrases from IGNORED_PHRASES.
queue_processors: Drop unused current_queue_size, which was local size.
dead code: Kill off most of html_branches.
tools: Enforce '_html' suffix for unescaped hbs vars.
ruff: Bump target-version from py38 to py310.