Fixed packaging bug

Author: ajoino

setup.cfg

@@ -19,7 +19,7 @@ classifiers =
     License :: OSI Approved :: Eclipse Public License 2.0 (EPL-2.0)
 
 [options]
-packages = arrowhead_client
+packages = find:
 python_requires = >=3.7
 install_requires =
     FastAPI
@@ -32,5 +32,7 @@ install_requires =
     six
 
 [options.packages.find]
-exclude = ./tests, ./examples
-
+exclude =
+    tests
+    tests.*
+    examples