fix set and get in redis_client

[terrazoon]

Description

Originally in Notify UK, redis_client.set() and redis_client.get() were wrapped in try/except, which make it very difficult to debug when there was an actual problem with redis, as we experienced a few months back.

At the time we added new methods raw_set() and raw_get() to get exceptions raised in key areas, but now let's clean things up and have exceptions always raised.

Security Considerations

N/A

[ccostino]

Never mind, I see what happened with poetry.lock, I'm getting that too - I have it covered in #1604.

[ccostino]

@terrazoon with the dependency updates taken care of now, whenever you have a moment to update this PR against main again please do so and then we can merge. 🙂 Thanks!