Change licence to license to remove build warning

chrisruk · chrisruk · commit d8220bb01bda · 2022-05-24T11:00:19.000+01:00
diff --git a/setup.py b/setup.py
@@ -17,7 +17,7 @@
 setup(name='buildhat',
       version=version,
       description='Build HAT Python library',
-      licence='MIT',
+      license='MIT',
       long_description=long_description,
       long_description_content_type="text/markdown",
       author='Raspberry Pi Foundation',
