Cant find pyproject.toml/setup.py with SDIST path

### Description I have setup where I build sdists, and then (try) to use them with cibuildwheel in a GH Actions file. But after upgrading to 3.4.1 I get `Error: cibuildwheel: Could not find any of {setup.py, setup.cfg, pyproject.toml} at root of package`. I have both a setup.py and pyproject.toml and it worked fine with 3.4.0 and earlier versions. Error: ``` Run pypa/cibuildwheel@v3.4.1 Run actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 Installed versions Run # Install cibuildwheel and build the command line Install cibuildwheel Run export PATH="$CIBW_PREPEND_PATH:$PATH" export PATH="$CIBW_PREPEND_PATH:$PATH" eval "$CIBW_CMD_BASH" 2>&1 shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0} env: SDIST_PATH: dist/pymunk-7.2.0.tar.gz CIBW_BUILD: cp39-* cp310-* cp311-* cp312-* cp313-* cp314-* cp314t-* pp311-* CIBW_PREPEND_PATH: /home/runner/work/_temp/cibw/bin.clean CIBW_CMD_BASH: /home/runner/work/_temp/cibw/bin/cibuildwheel '$SDIST_PATH' --output-dir wheelhouse Error: cibuildwheel: Could not find any of {setup.py, setup.cfg, pyproject.toml} at root of package ``` Relevant part of the GH action: ``` - name: Build sdist run: | pipx run build --sdist python3 -c "import os,pathlib,glob; pathlib.Path(os.environ['GITHUB_ENV']).write_text('SDIST_PATH=' + glob.glob('dist/*.tar.gz')[0] + '\n')" - name: Build wheels uses: pypa/cibuildwheel@v3.4.1 env: CIBW_BUILD: "cp39-* cp310-* cp311-* cp312-* cp313-* cp314-* cp314t-* pp311-*" with: package-dir: "$SDIST_PATH" ``` (full logs and yml file linked) ### Build log https://github.com/viblo/pymunk/actions/runs/25609835563/job/75178025119?pr=307 ### CI config https://github.com/viblo/pymunk/blob/2a3dea7d59833e97fca34414e02c72e6e0851761/.github/workflows/wheels.yml