Fix benches CI job (#1456)

.github/workflows/benches.yml

@@ -9,6 +9,9 @@ on:
 jobs:
   benches:
     runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./benches
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@master
@@ -16,8 +19,8 @@ jobs:
           toolchain: nightly
           components: clippy, rustfmt
       - name: Rustfmt
-        run: cargo fmt --all -- --check
+        run: cargo fmt -- --check
       - name: Clippy
-        run: cargo clippy --all --all-targets -- -D warnings
+        run: cargo clippy --all-targets -- -D warnings
       - name: Build
         run: RUSTFLAGS=-Dwarnings cargo build --all-targets