Build: fix the PyPI workflow (#134)

.github/workflows/build.yaml

@@ -79,9 +79,6 @@ jobs:
       - uses: actions/checkout@v3
       - name: Fetch unshallow
         run: git fetch --prune --tags --unshallow -f
-      - uses: actions/setup-python@v4
-        with:
-          python-version: $PYTHON_VERSION
       - uses: conda-incubator/setup-miniconda@v2
         with:
           miniconda-version: "latest"
@@ -93,18 +90,15 @@ jobs:
           doit env_create $CHANS_DEV --python=$PYTHON_VERSION
       - name: env setup
         run: |
-          eval "$(conda shell.bash hook)"
           conda activate test-environment
           doit develop_install $CHANS_DEV -o tests
           doit pip_on_conda
       - name: pip build
         run: |
-          eval "$(conda shell.bash hook)"
           conda activate test-environment
           doit ecosystem=pip package_build $PKG_TEST_PYTHON --no-pkg-test
       - name: pip upload
         if: github.event_name == 'push'
         run: |
-          eval "$(conda shell.bash hook)"
           conda activate test-environment
           doit ecosystem=pip package_upload -u $PPU -p $PPP -r $PYPI