Context::Pipeline#collect requires useless block

[orlando-labs]

Hi, I found out Context::Pipeline#collect requires block:

async-redis/lib/async/redis/context/pipeline.rb

Line 93 in da5a38c

yield

What's the purpose of this yield? It does nothing but just the block execution.

[ioquatix]

Derp, that seems like a bug.

[ioquatix]

I'm admiring how long it took me to circle back to this. I've fixed it and added a test. Sorry about the wait.