message: Fix python 3.10 restrictions in setup.py
  This PR fixes 3.10 restrictions in setup.py.
  This PR fixes 1591
diff: @@ -155,6 +155,7 @@ setuptools.setup(
  "Programming Language :: Python :: 3.7",
  "Programming Language :: Python :: 3.8",
  "Programming Language :: Python :: 3.9",
  + "Programming Language :: Python :: 3.10",
  "Programming Language :: Python :: 3 :: Only",
  "Topic :: Scientific/Engineering",
  "Topic :: Scientific/Engineering :: Mathematics",
  @@ -165,7 +166,7 @@ setuptools.setup(
  ],
  keywords="tensorflow io machine learning",
  packages=setuptools.find_packages(where=".", exclude=exclude),
  - python_requires=">=3.6, <3.10",
  + python_requires=">=3.7, <3.11",
  install_requires=install_requires,
  extras_require={
  "tensorflow": [require],
  