Use Rust 1.89 when installing bins via cargo, version pin svm-rs

svm-rs just released a new version requiring 1.89 to compile. This process to
not install _any_ software with 1.85 to minimize how many toolchains we have in
use.

.github/actions/build-dependencies/action.yml

@@ -40,7 +40,7 @@ runs:
     - name: Install solc
       shell: bash
       run: |
-        cargo install svm-rs
+        cargo +1.89 install svm-rs --version =0.5.18
         svm install 0.8.25
         svm use 0.8.25