Unable to locate file: cachix

[tricktron]

The Cachix Action suddenly fails with:

Action failed with error: Error: Unable to locate executable file: cachix. Please verify either the file path exists or the file can be found within a directory specified by the PATH environment variable. Also check the file mode to verify the file is executable.

See failing workflow.

Since everything was working before without any code change, my guess is that error may be network related in the
/usr/bin/bash -c nix-env --quiet -j8 -iA cachix -f https://cachix.org/api/v1/install step.

[Roman Volosatovs]

Duplicate of #138

[tricktron]

Closed as duplicate because @rvolosatovs was 2 minutes faster😃.