ci(release): fixup error

shell: command not found

Author: zoumingzhe

.github/workflows/release.yml

@@ -30,6 +30,6 @@ jobs:
       - uses: actions/checkout@v3
       - name: Install
         run: |
-          PROJECT=$(shell python3 -c "from xkits_command.attribute import __project__; print(__project__)")
-          VERSION=$(shell python3 -c "from xkits_command.attribute import __version__; print(__version__)")
+          PROJECT=$(python3 -c "from xkits_command.attribute import __project__; print(__project__)")
+          VERSION=$(python3 -c "from xkits_command.attribute import __version__; print(__version__)")
           while true; do python -m pip install $PROJECT==$VERSION && break || sleep 5; done