Missing author description in package json

[fschmeidl]

First of all thank you @hadashiA and all other contributors for for your work! We really benefit from it!

In Unity 6, packages are now shown in the package manager organized by the package author. Since the VContainer package, which we import via scoped registry and openupm, is missing the author field in its package-json, it is sorted under "Packages - Other" (see screenshot).

If the author would be set to Cysharp, it could be listed with other Cysharp packages.