Auto merge of #138127 - compiler-errors:rollup-kcarqrz, r=compiler-errors

Rollup of 17 pull requests

Successful merges:

 - #137827 (Add timestamp to unstable feature usage metrics)
 - #138041 (bootstrap and compiletest: Use `size_of_val` from the prelude instead of imported)
 - #138046 (trim channel value in `get_closest_merge_commit`)
 - #138053 (Increase the max. custom try jobs requested to `20`)
 - #138061 (triagebot: add a `compiler_leads` ad-hoc group)
 - #138064 (Remove - from xtensa targets cpu names)
 - #138075 (Use final path segment for diagnostic)
 - #138078 (Reduce the noise of bootstrap changelog warnings in --dry-run mode)
 - #138081 (Move `yield` expressions behind their own feature gate)
 - #138090 (`librustdoc`: flatten nested ifs)
 - #138092 (Re-add `DynSend` and `DynSync` impls for `TyCtxt`)
 - #138094 (a small borrowck cleanup)
 - #138098 (Stabilize feature `const_copy_from_slice`)
 - #138103 (Git ignore citool's target directory)
 - #138105 (Fix broken link to Miri intrinsics in documentation)
 - #138108 (Mention me (WaffleLapkin) when changes to `rustc_codegen_ssa` occur)
 - #138117 ([llvm/PassWrapper] use `size_t` when building arg strings)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors