Fix test workflow

Author: dhardy

.github/workflows/test.yml

@@ -81,7 +81,7 @@ jobs:
         run: |
           cargo test --target ${{ matrix.target }} --lib --tests --no-default-features
           cargo build --target ${{ matrix.target }} --no-default-features --features alloc,getrandom,small_rng
-          cargo test --target ${{ matrix.target }} --no-default-features --features=alloc,getrandom,small_rng
+          cargo test --target ${{ matrix.target }} --lib --tests --no-default-features --features=alloc,getrandom,small_rng
           # all stable features:
           cargo test --target ${{ matrix.target }} --features=serde1,log,small_rng
           cargo test --target ${{ matrix.target }} --examples