Update MSRV

Author: Jake-Shadle

.github/workflows/rust-ci.yml

@@ -63,7 +63,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
         with:
-          toolchain: "1.81.0"
+          toolchain: "1.85.0"
       - uses: Swatinem/rust-cache@v2
       - run: cargo fetch
       - name: cargo check