Disable caching in find_program #72250
Merged
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Unblocks #71725.
Followup: #71742
Prior to #71742, we were calling
locate_toolchain_exec
once per tool. Calling it twice with different prefix gives us the old result, which is something we don't want (we only call this local function a few times in this file, and each time for intention to "lookup" the executable).