[TECH DEBT]: Refactor verify_timeout property on DeployedWorkflows

[asnare]

Is there an existing issue for this?

• I have searched the existing issues

Problem statement

During #2364 we realised that the verify_timeout property on DeployedWorkflows should probably be refactored:

• This is a configuration property that only relates to a (narrow) subset of the class functionality (calls to .repair_run()).
• The caller to .repair_run() cares most about the timeout, not necessarily whoever is constructing the instance.
• The timeout could vary per call.

Proposed Solution

Refactor so that the verify_timeout property is an argument on the .repair_run() method instead of being supplied via the instance initialiser.

Additional Context

The WorkflowsDeployment class in the same file also has a verify_timeout property that doesn't appear to be used anywhere. It can probably also be removed.