Add support for "args" in task provider

### Brief Issue Summary

I would like to have default build command to do `cmake --build --preset presetName` - to build currently selected user preset. How can I know its name? I cannot find command to do `${command:cmake.getPresetName}` or something similar.

### CMake Tools Diagnostics

_No response_

### Debug Log

_No response_

### Additional Information

_No response_

Start by locating the task provider and the existing CMake preset handling in this repository. Reproduce the requested default build command, then determine how the currently selected preset could be exposed to task arguments; the work is done when that preset name can be used in a command such as `cmake --build --preset presetName`.

Written by the indexing model from the issue text.