Alpakka Kafka 1.1.0

Release notes in the Alpakka Kafka documentation

Changes

• Testkit & tests: Sort out some dependencies with security warnings #928 by @ennru

Benchmarks

• Benchmarks: don't reuse topics for raw batched consumers #922 by @ennru
• Benchmarks: try fresh topic for batched consumer 5000k #919 by @ennru

Tests

• Tests: change assertions to fix #832 #892 by @ennru

Documentation

• Release notes for 1.1.0 #925 by @ennru