Auto merge of #122283 - matthiaskrgr:rollup-w3sau3u, r=matthiaskrgr

Rollup of 14 pull requests

Successful merges:

 - #112136 (Add std::ffi::c_str module)
 - #113525 (Dynamically size sigaltstk in std)
 - #121567 (Avoid some interning in bootstrap)
 - #121642 (Update a test to support Symbol Mangling V0)
 - #121685 (Fixing shellcheck comments on lvi test script)
 - #121860 (Add a tidy check that checks whether the fluent slugs only appear once)
 - #121942 (std::rand: enable getrandom for dragonflybsd too.)
 - #122125 (Revert back to Git-for-Windows for MinGW CI builds)
 - #122221 (match lowering: define a convenient struct)
 - #122244 (fix: LocalWaker memory leak and some stability attributes)
 - #122251 (Add test to check unused_lifetimes don't duplicate "parameter is never used" error)
 - #122264 (add myself to rotation)
 - #122269 (doc/rustc: Move loongarch64-unknown-linux-musl to Tier 3)
 - #122271 (Fix legacy numeric constant diag items)

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