chore: use crdb 24.3 (#9558)

# Which Problems Are Solved

E2E tests in pipelines started to fail randomly. While debugging it, i
noticed that we use the `latest` tag of cockroach's docker image. They
tagged 25.1 as latest yesterday.

# How the Problems Are Solved

Since we drop support for CRDB with version 3 as there are anyway
multiple issues with various versions, I pinned the docker image tag to
`latest-v24.3`.

# Additional Changes

None

# Additional Context

relates to https://github.com/zitadel/zitadel/actions/runs/13917603587
and https://github.com/zitadel/zitadel/actions/runs/13904928050

(cherry picked from commit f1f500d0e7)

deploy/knative/cockroachdb-statefulset-single-node.yaml

@@ -86,7 +86,7 @@ spec:
               topologyKey: kubernetes.io/hostname
       containers:
       - name: cockroachdb
-        image: cockroachdb/cockroach:latest
+        image: cockroachdb/cockroach:latest-v24.3
         imagePullPolicy: IfNotPresent
         # TODO: Change these to appropriate values for the hardware that you're running. You can see
         # the resources that can be allocated on each of your Kubernetes nodes by running: