chore: Bump rust-toolchain from nightly-2026-07-29 to nightly-2026-10-01 in the rust-toolchain group (#409)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2026-07-29"
+channel = "nightly-2026-10-01"
 components = ["clippy", "rustfmt"]