Update CI to use Rust 1.85 for Debian Trixie compatibility

Co-authored-by: sjoerdsimons <[email protected]>

Author: Copilot

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master # avoid the tag here to prevent dependabot from updating it
         with:
-            toolchain: "1.70"
+            toolchain: "1.85"
       - run: cargo check --all-targets --all-features
   fmt:
     name: cargo fmt
@@ -26,7 +26,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master # avoid the tag here to prevent dependabot from updating it
         with:
-            toolchain: "1.70"
+            toolchain: "1.85"
             components: rustfmt
       - run: cargo fmt --all --check
   test:
@@ -38,7 +38,7 @@ jobs:
           lfs: 'true'
       - uses: dtolnay/rust-toolchain@master # avoid the tag here to prevent dependabot from updating it
         with:
-            toolchain: "1.70"
+            toolchain: "1.85"
       - run: cargo test --all-targets --all-features
 
   clippy:
@@ -48,7 +48,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master # avoid the tag here to prevent dependabot from updating it
         with:
-            toolchain: "1.70"
+            toolchain: "1.85"
             components: clippy
       - run: cargo clippy --all-targets --all-features -- -D warnings