Update pubsub client version

Updating pubsub version to v1.9.1 (#17)

Co-authored-by: Fernando Carniel <fernando.carniel@arquivei.com.br>

v0.5.0

Adds config to disable commit in confluent stream (#16)

Sometimes, we want a consumer to always read from the beginning of a topic. In
that case, it shouldn't commit the messages.

v0.3.1: Fixes gokit implementation (#9)

The correct way of supporting gokit's Endopint is to use a decoder function,
responsible for decoding the data from the transport layer into the endpoint
layer request format.

This commit copies the package "goduckhelper" from the foundationkit
repository, that creates a Processor/BatchProcessor from an endpoint and
decoder.

v0.3.0

Changelog

Now it is possible to use go-kit endpoints as input to the engines.

v0.2.4: Fixes confluent stream closing logic.

The current closing implementation has a race condition that panics when the
stream was already closed.

This commit makes proper use of the 'done' channel, so that everything stops
correctly after closing.