[ANN] U-Boot v2023.07-rc4 released

Hey all,

I've put out v2023.07-rc5 today, and it's a very small delta between this and -rc4. I'm hoping things stay very quiet between now and the release next week.

In terms of a changelog, git log --merges v2023.07-rc4..v2023.07-rc5 contains what I've pulled but as always, better PR messages and tags will provide better results here.

I plan to do the final release on July 3rd, 2023. Thanks all!