fix: always install rust, append cargo bin to GITHUB_PATH for subsequent steps

.gitea/workflows/rust-cache-test.yml

@@ -36,9 +36,9 @@ jobs:
           restore-keys: rust-Linux-
 
       - name: Setup Rust
-        if: steps.cache.outputs.cache-hit != 'true'
         run: |
           curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
+          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
 
       - name: Build
         run: cargo build --verbose