Upgrade build dependencies

Author: mdmintz

setup.py

@@ -47,7 +47,7 @@
         os.system("rm -f dist/*.egg; rm -f dist/*.tar.gz; rm -f dist/*.whl")
         os.system("rm -rf build/bdist.*; rm -rf build/lib")
         print("\n*** Installing build: *** (Required for PyPI uploads)\n")
-        os.system("python -m pip install --upgrade 'build>=0.8.0'")
+        os.system("python -m pip install --upgrade 'build>=0.9.0'")
         print("\n*** Installing twine: *** (Required for PyPI uploads)\n")
         os.system("python -m pip install --upgrade 'twine>=4.0.1'")
         print("\n*** Installing tqdm: *** (Required for PyPI uploads)\n")