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`cc` was previously pinned because version 1.1.106 dropped support for Visual Studio 12 (2013), and we wanted to decouple that from the rest of the automated updates. As noted in [2], there is no longer anything indicating we support VS2013, so it should be okay to unpin it. `cc` 1.1.22 contains a fix that may help improve the high MSVC CI failure rate [3], so we also have motivation to update to that point. [1]: https://github.com/rust-lang/rust/issues/129307 [2]: https://github.com/rust-lang/rust/issues/129307#issuecomment-2383749868 [3]: https://github.com/rust-lang/rust/issues/127883