`tap package download` should not give messages about dependencies not being installed

Environment:

Windows 10, 64-bit

OpenTAP 9.12.0-rc.1 (9.11 not reproduced)

Steps to reproduce:

1. tap package download REST-API

Actual result:

Message regarding a dependecy that is not installed

Expected result:

In the context of downloading a package (not installing it) there should be no requirement for dependencies to be installed.

A recomended message would be:

"The package has 1 dependency (use --dependencies to also get these)"

Other remarks:

The download works, it's the message that is the issue