New example to list compute resource for SUBMIT_RUN job runs (#572)

## Changes
From a discussion with @mgyucht on a request for getting a list of jobs
submitted via jobs/submit and the associated compute resource(s). There
are multiple compute-related fields returned in the response (both on
the run, and on the task) so this example aims to disambiguate them.

Ran against AWS, Azure, GCP workspaces.

## Tests
<!-- 
How is this tested? Please see the checklist below and also describe any
other relevant tests
-->

- [ ] `make test` run locally
- [ ] `make fmt` applied
- [ ] relevant integration tests applied

examples/list_compute_submitrun_runs.py

@@ -0,0 +1,42 @@
+#!env python3
+import logging
+import sys
+
+from databricks.sdk import WorkspaceClient
+from databricks.sdk.service import jobs
+
+if __name__ == "__main__":
+    logging.basicConfig(stream=sys.stdout,
+                        level=logging.INFO,
+                        format="%(asctime)s [%(name)s][%(levelname)s] %(message)s",
+                        )
+
+    w = WorkspaceClient()
+
+    # we set expand_tasks to true because the cluster information will exist in the tasks
+    job_runs = w.jobs.list_runs(expand_tasks=True)
+
+    for run in job_runs:
+        # filter to SubmitRun jobs
+        if run.run_type == jobs.RunType.SUBMIT_RUN:
+            tasks = run.tasks
+
+            compute_used = []
+            # Iterate over tasks in the run
+            for task in run.tasks:
+                '''
+                - Tasks with All Purpose clusters will have an existing_cluster_id
+                - Tasks with a Jobs cluster will have the new_cluster represented as ClusterSpec
+                - SQL tasks will have a sql_warehouse_id
+                '''
+                task_compute = (
+                    {"existing_cluster_id": task.existing_cluster_id} if task.existing_cluster_id else
+                    {"new_cluster": task.new_cluster} if task.new_cluster else
+                    {"sql_warehouse_id": task.sql_task.warehouse_id} if task.sql_task else
+                    {}
+                )
+
+                # Append the task compute info to a list for the job
+                compute_used.append(task_compute)
+
+            logging.info(f"run_id: {run.run_id}, compute_used: {compute_used}")