fix workflow got renamed

Author: brunob45

.github/workflows/rust.yml

@@ -14,10 +14,10 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        features: ['log,is_sync', 'defmt-log,is_sync', 'is_sync']
+        features: ['log', 'defmt-log', '""']
     steps:
     - uses: actions/checkout@v1
     - name: Build
-      run: cargo build --no-default-features --features ${{matrix.features}} --verbose
+      run: cargo build --no-default-features --features ${{matrix.features}},is_sync --verbose
     - name: Run Tests
-      run: cargo test --no-default-features --features ${{matrix.features}} --verbose
+      run: cargo test --no-default-features --features ${{matrix.features}},is_sync --verbose