Bump dtolnay/rust-toolchain

Bumps the minor-updates group with 1 update in the / directory: [dtolnay/rust-toolchain](https://github.com/dtolnay/rust-toolchain).


Updates `dtolnay/rust-toolchain` from 1.88 to 1.100
- [Release notes](https://github.com/dtolnay/rust-toolchain/releases)
- [Commits](https://github.com/dtolnay/rust-toolchain/compare/1.88...1.100)

---
updated-dependencies:
- dependency-name: dtolnay/rust-toolchain
  dependency-version: '1.100'
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: minor-updates
...

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

.github/workflows/ci.yml

@@ -90,7 +90,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install Rust 1.88
-        uses: dtolnay/rust-toolchain@1.88
+        uses: dtolnay/rust-toolchain@1.100
 
       - name: Cache dependencies
         uses: Swatinem/rust-cache@v2