Client to a cluster with more than 5 workers appears as though it only has 5

[zmbc]

Describe the issue: Clients only report information about the cluster's first five workers without a disclaimer.

Minimal Complete Verifiable Example:

from distributed import LocalCluster, Client

if __name__ == '__main__':
    cluster = LocalCluster(n_workers=6, memory_limit="500MiB")
    c = Client(cluster)
    print(c)

Output is <Client: 'tcp://127.0.0.1:46429' processes=5 threads=5, memory=2.44 GiB> when it should be processes=6 threads=6, memory=3 GiB

Anything else we need to know?: This change introduced this issue. cc @fjetter

Environment:

• Dask version: 2025.4.1
• Python version: 3.11.9
• Operating System: Linux
• Install method (conda, pip, source): pip

[jrbourbeau]

Thanks for the issue @zmbc. I'm able to reproduce -- #9066 should fix this