Find and return the first existing conda or mamba executable, throwing an error if none of the candidate locations exist on disk.
The parsed action inputs.
The current dynamic options.
Optional
If provided, mamba is only used when it supports this subcommand.
The absolute path to the found executable.
If no conda or mamba executable exists at any candidate location.
Find and return the first existing conda or mamba executable, throwing an error if none of the candidate locations exist on disk.