[CHANGELOG] Add v0.63.0 entry

[alloy]

We’ll still need to cleanup the changelog and there’s these that need vetting/follow-up work:

  Unable to find differential revisions for the following commits. If these were made on the release branch only, be sure to update the CHANGELOG entries to point to the commit on the master branch after back-porting.
    https://github.com/facebook/react-native/commit/7acd6672a71d2908153b1f195e6e577b5efd38f7
    https://github.com/facebook/react-native/commit/b191809d5eab8cd09411e227d3deaa33aac45ec7
    https://github.com/facebook/react-native/commit/07def553968f88f65a2a07c3aea8e757e49530dd
    https://github.com/facebook/react-native/commit/10c39847a70545806dca3e1c639a46be05365332
    https://github.com/facebook/react-native/commit/5ebca708132be8720c28a565e03b04e1087326cf
    https://github.com/facebook/react-native/commit/44ae0fea07fac5e2a62804d537241c39f2b8da0d
    https://github.com/facebook/react-native/commit/a793ed759812c5654fd96871b72e3071c73e3d8e
    https://github.com/facebook/react-native/commit/ca431c217957ff051013b1fa0d3f4753823b587f
    https://github.com/facebook/react-native/commit/d2045411f5771a8c7275c1388179fef3892e9f53
    https://github.com/facebook/react-native/commit/be355a24b72c7e73abb26c2d1a14831a4f7bb2d6

[vitorebatista]

Suggested change

	- Modal: Remove support for `aniamted` prop (deprecated in 0.26) ([1e9db7bd6d](https://github.com/facebook/react-native/commit/1e9db7bd6df3055b9b81d23f15a54bb250621a41) by [@TheSavior](https://github.com/TheSavior))
	- Modal: Remove support for `animated` prop (deprecated in 0.26) ([1e9db7bd6d](https://github.com/facebook/react-native/commit/1e9db7bd6df3055b9b81d23f15a54bb250621a41) by [@TheSavior](https://github.com/TheSavior))

[jeremy-deutsch]

I made a new PR for the changelog, if that's cool: #198 🙂