Auto merge of #57236 - pietroalbini:beta-backports, r=pietroalbini

[beta] Rollup backports

* #56919: Remove a wrong multiplier on relocation offset computation
* #56916: Fix mutable references in `static mut`
* #56863: fix trait objects with a Self-containing projection values
* #56850: Fixed issue with using `Self` ctor in typedefs

r? @ghost