TASK: Update minimum DNN release to 9.13

[johnhenley]

Is your feature request related to a problem?

To address potential security issues, we should raise the minimum supported DNN version to 9.13, with sites preferably upgrading to minimum of 9.13.10.

Describe the solution you'd like

• Update all references from DNN 9.11 to DNN 9.13, and resolve all deprecated DNN API warnings.
• Update manifest

Describe alternatives you've considered

N/A

Additional context

N/A