Alpakka Kafka 3.1.0-M1

Changes

• Akka 2.7.0-M1 dependency #1539 by @patriknw
• Update to akka-stream-alpakka-csv 4.0.0 #1536 by @patriknw
• Publish docs with JDK 11 #1535 by @patriknw
• Fossa validation #1533 by @patriknw
• Update sbt-paradox-akka #1534 by @patriknw
• bump: jackson-databind 2.13.4 (was 2.13.3) #1524 by @scala-steward
• bump: mockito-core 4.7.0 (was 4.6.1) #1528 by @scala-steward
• Fix link #1531 by @patriknw
• bump: metrics-core 4.2.12 (was 4.2.11) #1527 by @scala-steward
• Change license #1522 by @patriknw

Benchmarks

• Temporary remove Alpakka csv dependency #1540 by @patriknw
• Add back Scala 2.12 #1538 by @patriknw

Alpakka Kafka core

• Add back Scala 2.12 #1538 by @patriknw

Tests

• Add back Scala 2.12 #1538 by @patriknw
• bump: testcontainersVersion 1.17.3 #1532 by @patriknw

Alpakka Kafka Testkit

• Add back Scala 2.12 #1538 by @patriknw
• bump: testcontainersVersion 1.17.3 #1532 by @patriknw

Documentation

• Remove Kafka client link #1541 by @patriknw
• document required default config #1530 by @sebastian-alfers
• update release template #1521 by @patriknw