chore(deps): update confluentinc/cp-kafka docker tag to v6.2.15 (main) (#11283)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Paul Rogers <129207811+paul1r@users.noreply.github.com>

tools/kafka/sasl-plain/docker-compose.yml

@@ -14,7 +14,7 @@ services:
       - ./conf:/etc/kafka/secrets
 
   kafka:
-    image: confluentinc/cp-kafka:6.2.1
+    image: confluentinc/cp-kafka:6.2.15
     depends_on:
       - zookeeper
     ports:

tools/kafka/sasl-scram/docker-compose.yml

@@ -14,7 +14,7 @@ services:
       - ./conf:/etc/kafka/secrets
 
   kafka:
-    image: confluentinc/cp-kafka:6.2.1
+    image: confluentinc/cp-kafka:6.2.15
     depends_on:
       - zookeeper
     ports:

tools/kafka/sasl-ssl/docker-compose.yml

@@ -14,7 +14,7 @@ services:
       - ./conf:/etc/kafka/secrets
 
   kafka:
-    image: confluentinc/cp-kafka:6.2.1
+    image: confluentinc/cp-kafka:6.2.15
     depends_on:
       - zookeeper
     ports:

tools/kafka/ssl/docker-compose.yml

@@ -9,7 +9,7 @@ services:
       ZOOKEEPER_CLIENT_PORT: 22181
 
   kafka:
-    image: confluentinc/cp-kafka:6.2.1
+    image: confluentinc/cp-kafka:6.2.15
     depends_on:
       - zookeeper
     ports: