Database initialization

[ecanuto]

Implement init_database (or a better name).

Don't forget to include it on setup:

def setup():
    load_env()
    init_logger()
    if not _SENTRY_SDK_MISSING_DEPS:
        init_sentry()
    if not _DATABASE_SDK_MISSING_DEPS:
       init_database()

[JoaoVitorStein]

Resolved with cc67c2a and 5c3e6f3