Restore Rust installation step from main

Author: theap06

.github/workflows/gcm_python.yml

@@ -64,6 +64,11 @@ jobs:
           path: ~/.cache/venv-ci
           key: ${{ env.pythonLocation }}-${{ hashFiles('dev-requirements.txt') }}
 
+      - name: Install Rust
+        run: |
+          curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+          cp -r $HOME/.cargo/bin/* $HOME/.cache/venv-ci/bin/
+
       - name: Install build dependencies
         run: |
           sudo apt update --yes