CMakePresets.json: Rework how --preset argument is handled

Kyle Edwardsrequested to merge
kyle.edwards/cmake:cmake-presets-path-arg into master

If a path argument with no -S or -B leads to a cache directory, use that directory as the binary directory. Otherwise, use the binary directory from the preset.

Fixes: #21311 (closed)
Backport: release

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