Fix conda build by adding example directory

Also add setuptools for Python 3.13

Author: PeterC-DLS

conda/meta.yaml

@@ -17,6 +17,7 @@ requirements:
   host:
     - python >=3.10
     - pip
+    - setuptools
   run:
     - python >=3.10
     - h5py >=3
@@ -28,6 +29,7 @@ test:
   imports:
     - {{ name }}
   source_files:
+    - example
     - tests
   requires:
     - parameterized