BUG: Fix Windows Python PATH string

Author: tbirdso

.github/workflows/build-test-package.yml

@@ -281,7 +281,7 @@ jobs:
       run: |
         cd Evaluated/ITKModuleTemplate
         call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
-        set PATH="C:\P\grep;%PATH%"
+        set PATH=C:\P\grep;%PATH%
         set CC=cl.exe
         set CXX=cl.exe
         C:\Python3${{ matrix.python-version-minor }}-x64\python.exe C:\P\IPP\scripts\windows_build_module_wheels.py --py-envs "3${{ matrix.python-version-minor }}-x64"