chore: bump rust version for releases

Author: jdx

.github/workflows/test.yml

@@ -63,6 +63,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: true
+      - run: rustup update # TODO: remove when 1.85.0 is released to build images
       - uses: Swatinem/rust-cache@v2
         with:
           shared-key: build