Fix a typo in groups/ntc/ntca/ntca_interfaceconfig.h

**Describe the bug**
In file groups/ntc/ntca/ntca_interfaceconfig.h, there is a typo in the variable name. The `minThreads` variable should really be named as `maxThreads`.

**To Reproduce**
The variable is present in the [header file](https://github.com/bloomberg/ntf-core/blob/1b9f72d68a527b9dfac51efbef2a699fff80710d/groups/ntc/ntca/ntca_interfaceconfig.h#L407).

**Expected behavior**
Fix the typo and change the variable name to make it meaningful.

**Screenshots**
N/A

**Environment (please complete the following information):**
- Any environment

**Additional context**
Add any other context about the problem here.

Open groups/ntc/ntca/ntca_interfaceconfig.h at the referenced declaration near line 407 and confirm how the variable is named and used. Rename the misleading minThreads variable to maxThreads wherever needed, then verify the project still builds and its relevant tests pass.

Written by the indexing model from the issue text.