ci: Update Rust CI workflow to remove nightly toolchain and improve build verbosity

Author: lukefleed

.github/workflows/rust.yml

@@ -17,9 +17,7 @@ jobs:
       - uses: actions/checkout@v4
       - name: Install fontconfig
         run: sudo apt-get update && sudo apt-get install -y libfontconfig1-dev
-      - name: Switch to nightly toolchain
-        run: rustup default nightly
       - name: Build
-        run: cargo build --verbose
-      # - name: Run tests
-      #   run: cargo test --all-features --verbose
+        run: cargo build --release --all-features
+      - name: Run tests
+        run: cargo test --release --all-features