Fix the ci

Author: weiznich

.github/workflows/ci.yml

@@ -113,7 +113,7 @@ jobs:
         run: cargo +${{ matrix.rust }} version
 
       - name: Test diesel_async
-        run: cargo +{{ matrix.rust }} test --manifest-path Cargo.toml --no-default-features --features "${{ matrix.backend }} deadpool bb8 mobc"
+        run: cargo +${{ matrix.rust }} test --manifest-path Cargo.toml --no-default-features --features "${{ matrix.backend }} deadpool bb8 mobc"
 
   rustfmt_and_clippy:
     name: Check rustfmt style && run clippy