(refactor)kafka: add additonal env vars (#58)

Signed-off-by: ksatchit <ksatchit@mayadata.io>

charts/kafka/kafka-broker-pod-failure/experiment.yaml

@@ -45,6 +45,9 @@ spec:
     - name: KAFKA_LIVENESS_STREAM
       value: 'enabled'
 
+    - name: KAFKA_CONSUMER_TIMEOUT
+      value: '30000'
+
     - name: TOTAL_CHAOS_DURATION
       value: '15'
 
@@ -54,6 +57,9 @@ spec:
     - name: FORCE
       value: 'true'
 
+    - name: KAFKA_INSTANCE_NAME
+      value: ''
+
     - name: KAFKA_NAMESPACE
       value: ''