fix(ci): add .venv/bin to PATH so auditwheel is discoverable

uv sync installs auditwheel into .venv/bin/ which is not on the
default PATH. Append it via $GITHUB_PATH after uv sync.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: Emin017

.github/actions/build-wheel/action.yml

@@ -35,7 +35,9 @@ runs:
 
     - name: Install Python dev dependencies
       shell: bash
-      run: uv sync --all-groups --python 3.11
+      run: |
+        uv sync --all-groups --python 3.11
+        echo "${{ github.workspace }}/.venv/bin" >> "$GITHUB_PATH"
 
     - name: Restore CMake build cache
       uses: actions/cache@v4