ci: do _not_ build with all features in CI to prevent repeated compilations

Author: DCNick3

.github/workflows/test.yml

@@ -64,7 +64,7 @@ jobs:
         uses: actions-rs/cargo@v1
         with:
           command: build
-          args: --release --all-features
+          args: --release
 
       - name: Download test vectors from IETF site
         run: |