Add retry timeout when fetching oidc_endpoints

[rossgray]

What changes are proposed in this pull request?

Fixes https://github.com/databricks/databricks-sdk-py/issues/1046

Currently any retry_timeout_seconds passed into the Config is not passed along to other methods or properties, such as oidc_endpoints. This is an issue because it can lead to the instantiation of the Config class taking 5 minutes if an invalid host is provided (this is the default timeout).

This PR ensures the retry_timeout_seconds is respected when fetching account and workspace endpoints.

How is this tested?

Prior to this PR, this code will fail after 5 minutes:

from databricks.sdk.core import Config

config = Config(
    host="invalid",
    client_id="invalid",
    client_secret="invalid",
    retry_timeout_seconds=30,
)

ValueError: default auth: oauth-m2m: Timed out after 0:05:00. Config: host=https://invalid, client_id=invalid, client_secret=***, retry_timeout_seconds=30

After this change, it will fail after 30 seconds as expected:

ValueError: default auth: oauth-m2m: Timed out after 0:00:30. Config: host=https://invalid, client_id=invalid, client_secret=***, retry_timeout_seconds=30

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Inputs:

• PR number: 1085
• Commit SHA: 62d2a07765b0b4f82b37e0da02690ebb0cecf5d9

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