Use semver not hash for Kafka image (jaegertracing#5686)

We don't need strict repeatable builds for integration tests, a semver
is more appropriate and will prevent major/patch noise from renovate.

---------

Signed-off-by: Mend Renovate <[email protected]>
Signed-off-by: Yuri Shkuro <[email protected]>
Co-authored-by: Yuri Shkuro <[email protected]>
Co-authored-by: Yuri Shkuro <[email protected]>

Author: renovate-bot

docker-compose/kafka/docker-compose.yml

@@ -8,7 +8,7 @@ services:
     environment:
       - ALLOW_ANONYMOUS_LOGIN=yes
   kafka:
-    image: index.docker.io/bitnami/kafka@sha256:9abe5ce1ce14e0ff3041075c5183202fb5c47ea28ad270bfcb067f7ade304d8b # 3.7.0
+    image: index.docker.io/bitnami/[email protected]
     ports:
       - '9092:9092'
     environment: