fix: Remove conan v2 ready list link

[danimtb]

Changelog: Fix: Remove conan v2 ready conan-center link.
Docs: omit

I found this error at conan-io/conan-center-index#18196 (comment) and the url is not working anymore, so I removed it from the message and added the suggestion to open an issue in cci repo, as soon conan v2 support will be required for all recipes.

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