ci: prepend brew bin to PATH to reproduce macos GOROOT failure

Author: not-matthias

.github/workflows/ci.yml

@@ -83,10 +83,17 @@ jobs:
       - uses: ./.github/actions/rust-install
       - run: cargo build --release
 
-      - run: which -a go && go env GOROOT
+      - name: Probe go resolution with brew bin prepended
+        run: |
+          export PATH="/opt/homebrew/bin:$PATH"
+          echo "PATH=$PATH"
+          which -a go
+          go env GOROOT || echo "go env GOROOT failed with exit $?"
 
       - name: Run the benchmarks
         uses: CodSpeedHQ/action@main
+        env:
+          PATH: /opt/homebrew/bin:${{ env.PATH }}
         with:
           run: cargo r --release --manifest-path ../go-runner/Cargo.toml -- test -bench=BenchmarkFibonacciDarwin example -benchtime=500ms
           working-directory: example