We can update cluster configuration prgramatically using databricks api. 

Steps:

 1) Fetch all the clusters info present in your workspace.

 2) Loop through each cluster info

 3) Use the parsed info like cluster id etc.. to update cluster config

Example Psuedo code:

import requests
import json

host = "https://<YOUR-WORKSPACE-URL>"
workspace_access_token = "<YOUR-ACCESS-TOKEN>"
cluster_id = "<YOUR-CLUSTER-ID>"
workers_min = 1
workers_max = 2

response = requests.post(
        f"{host}/api/2.0/clusters/edit",
        headers={
            "Authorization": f"Bearer {workspace_access_token}",
"Content-Type": "application/json"
        },
        data={
"cluster_id": cluster_id,
"min_workers": workers_min,
"max_workers": workers_max
}
    )