[ANN] U-Boot v2023.10-rc4 released

Hey all,

Once again it's release day and I've tagged and pushed -rc4, and will merge that to next as well shortly. We are firmly in the stabilization period at this point and I really want to see PRs for -next for things that aren't fixes. Adding Fixes tags would be great and helpful, but not required.

In terms of a changelog, git log --merges v2023.10-rc3..v2023.10-rc4 contains what I've pulled but as always, better PR messages and tags will provide better results here.

I'm going to try and stay on schedule now and that means the rest of the rcs every other Monday, and with final release on October 2nd, 2023. Thanks all!