Allow ~3.0 deps

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Thanks to our BC promise, we can (and should ensure) that 3.0 components work when mixed with 2.x ones.
This PR allows mixing, while #12542 will allow verifying that it works effectively.