fix inspect remote

[memsharded]

Changelog: Bugfix: Fix inspect --remote forcing to retrieve the remote for evaluation, overwriting what is in the local cache.
Docs: Omit

Close #7745

[memsharded]

Assigning @czoido, because this deserves some thought into the new CLI 2.0.

[czoido]

I'm adding a test, as I think there's a side effect with this. As we are deleting export preparing to download the files:

conan/conans/client/remote_manager.py

Line 167 in 4d43ce8

rmdir(dest_folder)

Doing something like this:

conan new pkg/1.0 -s
conan create .
conan inspect pkg/1.0 # is fine, we get the data
conan inspect pkg/1.0 -r conan-center # as a side effect removes export folder
conan inspect pkg/1.0 # broken

[memsharded]

Very good catch @czoido

I have changed the code, doing first a check if the recipe exists in the remote before trying to fetch it, with _, ref = self.app.remote_manager.get_recipe_manifest(ref, remote). Now the test passes, but tbh, I am not super comfortable with this "inspect in remotes" feature, we need to re-think it.