fix: do not include docs/conf.py & scripts in wheel

Author: mgorny

setup.py

@@ -37,7 +37,13 @@
     description="Google Authentication Library",
     long_description=long_description,
     url="https://github.com/GoogleCloudPlatform/google-auth-library-python-oauthlib",
-    packages=find_namespace_packages(exclude=("tests*",)),
+    packages=find_namespace_packages(
+        exclude=(
+            "docs*",
+            "scripts*",
+            "tests*",
+        )
+    ),
     install_requires=DEPENDENCIES,
     extras_require={"tool": TOOL_DEPENDENCIES},
     entry_points={