add 'aiosqlite' for async SQLite

Signed-off-by: Grant Ramsay <seapagan@gmail.com>

Author: seapagan

poetry.lock

@@ -12,6 +12,7 @@ fastapi = "^0.97.0"
 asyncpg = "^0.27.0"
 sqlalchemy = {extras = ["asyncio"], version = "^2.0.16"}
 uvicorn = {extras = ["standard"], version = "^0.22.0"}
+aiosqlite = "^0.19.0"
 
 [tool.poetry.group.dev.dependencies]
 # linting and formatting tools