BUG: Require itk>=5.2.0.post2 for notebook tests

Author: thewtex

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

@@ -241,7 +241,7 @@ jobs:
         run: |
             python -m pip install --upgrade pip
             python -m pip install ninja
-            python -m pip install itk==5.2rc03
+            python -m pip install itk>=5.2.0.post2
             python -m pip install matplotlib
             python -m pip install itkwidgets