Rollup merge of #96391 - ChrisDenton:command-non-verbatim, r=joshtriplett

Windows: make `Command` prefer non-verbatim paths

When spawning Commands, the path we use can end up being queried using `env::current_exe` (or the equivalent in other languages). Not all applications handle these paths properly therefore we should have a stronger preference for non-verbatim paths when spawning processes.

Author: matthiaskrgr