Rollup merge of #144251 - tshepang:rdg-sync, r=jieyouxu

rustc-dev-guide subtree update

Subtree update of `rustc-dev-guide` to cca233729f.

Created using https://github.com/rust-lang/josh-sync.

r? ```@ghost```
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许杰友 Jieyou Xu (Joe) 2025-07-22 00:54:32 +08:00 committed by GitHub
commit 3290c665ff
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