kafka: Add test for 2.2

Also add back tests, don't seem broken anymore.

This is just fine:
nix-build ./nixos/release.nix -A tests.kafka.kafka_2_1.x86_64-linux -A tests.kafka.kafka_2_2.x86_64-linux

nixos/tests/all-tests.nix

@@ -114,7 +114,7 @@ in
   ipv6 = handleTest ./ipv6.nix {};
   jackett = handleTest ./jackett.nix {};
   jenkins = handleTest ./jenkins.nix {};
-  #kafka = handleTest ./kafka.nix {}; # broken since openjdk: 8u181 -> 8u192
+  kafka = handleTest ./kafka.nix {};
   kerberos = handleTest ./kerberos/default.nix {};
   kernel-latest = handleTest ./kernel-latest.nix {};
   kernel-lts = handleTest ./kernel-lts.nix {};

nixos/tests/kafka.nix

@@ -72,4 +72,5 @@ in with pkgs; {
   kafka_1_1  = makeKafkaTest "kafka_1_1"  apacheKafka_1_1;
   kafka_2_0  = makeKafkaTest "kafka_2_0"  apacheKafka_2_0;
   kafka_2_1  = makeKafkaTest "kafka_2_1"  apacheKafka_2_1;
+  kafka_2_2  = makeKafkaTest "kafka_2_2"  apacheKafka_2_2;
 }