debian/apertis/component: Set to development
pydoctor which is in development added a new dependency python3-poetry in bookworm. python-poetry requires python3-cachy which depends on python3-memcache. So move python-memcache to development.
pydoctor which is in development added a new dependency python3-poetry in bookworm. python-poetry requires python3-cachy which depends on python3-memcache. So move python-memcache to development.