Automatic toolchain upgrade to nightly-2025-10-27

[github-actions]

Update Rust toolchain from nightly-2025-10-26 to nightly-2025-10-27 without any other source changes.

[github-actions]

This is an automatically generated pull request. If any of the CI checks fail,
manual intervention is required. In such a case, review the changes at
https://github.com/rust-lang/rust from
rust-lang/rust@34f954f up to
rust-lang/rust@f37aa99. The log
for this commit range is:

https://github.com/rust-lang/rust/commit/f37aa9955f Auto merge of #147890 - tmiasko:deduce-captures-none, r=cjgillot

rust-lang/rust@f977dfc388 Auto merge of #146992 - GuillaumeGomez:improve-highlight, r=yotamofek,lolbinarycat
rust-lang/rust@2888098522 Auto merge of #148003 - aDotInTheVoid:rustdoc-postcard-compiletest-groundwork, r=jieyouxu
rust-lang/rust@58b4453fbd Auto merge of #148136 - Zalathar:rollup-73hkwv8, r=Zalathar
rust-lang/rust@cdacfb8158 Rollup merge of #148134 - Fulgen301:maintainer, r=Noratrieb
rust-lang/rust@3bf838d790 Rollup merge of #148118 - saethlin:nullary-intrinsic-check-bug-msg, r=Noratrieb,dianqk
rust-lang/rust@e873f13454 Add myself as a windows-msvc maintainer
rust-lang/rust@a8664a1534 Auto merge of #145665 - GrigorenkoPV:144707, r=tgross35
rust-lang/rust@e5177985a5 Auto merge of #147818 - rperier:unify_and_dedup_max_recip_float_tests, r=tgross35
rust-lang/rust@cc63a0abde Auto merge of #148066 - lcnr:remove-perf-hack, r=BoxyUwU