Update bitnami/kafka Docker tag to v3.8.0 (#5803)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [bitnami/kafka](https://togithub.com/bitnami/containers)
([source](https://togithub.com/bitnami/containers/tree/HEAD/bitnami/kafka))
| minor | `3.7.0` -> `3.8.0` |

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Signed-off-by: Mend Renovate <[email protected]>

docker-compose/kafka-integration-test/docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   kafka:
-    image: bitnami/kafka:3.7.0
+    image: bitnami/kafka:3.8.0
     ports:
       - "9092:9092"
     environment: