fix regex; get version string directly by invoking setup.py

Author: qrkourier

.github/workflows/main.yml

@@ -36,15 +36,11 @@ jobs:
     - name: Build Package
       run: python3 -m build
 
-    - name: Install the build in workspace
-      run: |
-        pip install ./dist/netfoundry-*.tar.gz
-    
     - name: Read version string
       id: run_version
       run: |
-        PYPI_VERSION=$(python3 -m netfoundry.version)
-        [[ ${PYPI_VERSION} =~ ^v[0-9]\s+\.[0-9]\s+\.[0-9]\s+.* ]] || {
+        PYPI_VERSION=$(python setup.py --version)
+        [[ ${PYPI_VERSION} =~ ^[0-9]+\.[0-9]+\.[0-9]+.* ]] || {
           echo "ERROR: unexpected version string '${PYPI_VERSION}'" >&2
           exit 1
         }