[feature request] better output message when using --upgrade

[beauxq]

What's the problem this feature will solve?

Whenever I use --upgrade, I'm unsure of whether it's the right command, and pip doesn't help me know whether it's the right command.

If the package is up-to-date, the output is identical to not using --upgrade.

Requirement already satisfied is the same whether I use --upgrade or not.

So I wouldn't be able to tell if pip just ignored --upgrade.

Describe the solution you'd like

I would prefer to see a message like
is already the latest version
so I can tell that the --upgrade flag was recognized.

Alternative Solutions

It's annoying having to double-check that that is the right command line option every time I use it.

Additional context

n/a

Code of Conduct

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