CRAN's MSRV is now 1.84.1

[mattwigway]

Looks like the CRAN Windows build machines have been updated to Rust 1.92, making the macOS machines with Rust 1.84.1 the MSRV. Running the code from the CRAN MSRV page now produces:

                        Check flavor  rustc  cargo
1              r-release-macos-arm64 1.84.1 1.84.1
2             r-release-macos-x86_64 1.84.1 1.84.1
3               r-oldrel-macos-arm64 1.84.1 1.84.1
4              r-oldrel-macos-x86_64 1.84.1 1.84.1
5               r-oldrel-macos-arm64 1.84.1 1.84.1
6              r-oldrel-macos-x86_64 1.84.1 1.84.1
7  r-devel-linux-x86_64-fedora-clang 1.87.0 1.87.0
8    r-devel-linux-x86_64-fedora-gcc 1.87.0 1.87.0
9  r-devel-linux-x86_64-debian-clang 1.91.1 1.91.1
10   r-devel-linux-x86_64-debian-gcc 1.91.1 1.91.1
11            r-patched-linux-x86_64 1.91.1 1.91.1
12            r-release-linux-x86_64 1.91.1 1.91.1
13            r-devel-windows-x86_64 1.92.0 1.92.0
14          r-release-windows-x86_64 1.92.0 1.92.0
15           r-oldrel-windows-x86_64 1.92.0 1.92.0

I guess the docs just need to be re-rendered.