Bump dtolnay/rust-toolchain from 1.43.1 to 1.80.0

Bumps [dtolnay/rust-toolchain](https://github.com/dtolnay/rust-toolchain) from 1.43.1 to 1.80.0.
- [Release notes](https://github.com/dtolnay/rust-toolchain/releases)
- [Commits](dtolnay/rust-toolchain@1.43.1...1.80.0)

---
updated-dependencies:
- dependency-name: dtolnay/rust-toolchain
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/ci.yml

@@ -31,7 +31,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: taiki-e/install-action@cargo-no-dev-deps
-      - uses: dtolnay/rust-toolchain@1.43.1
+      - uses: dtolnay/rust-toolchain@1.80.0
       - run: cargo no-dev-deps check
 
   test: