housekeep: bump renovate dependencies

email-validator:  1.2.1 -> ^1.3.0
uvicorn:          ^0.18.0 -> ^0.19.0
fastapi:          ^0.83.0 -> ^0.85.0
pytest-asyncio:   ^0.19.0 -> ^0.20.1
pytest-cov        ^3.0.0 -> ^4.0.0

Signed-off-by: Leonidas Spyropoulos <artafinde@archlinux.org>