Python needs to be updated

[fahad-1406]

=> ERROR [4/8] RUN pip install elasticsearch-curator 4.3s

[4/8] RUN pip install elasticsearch-curator:
#0 0.785 Collecting elasticsearch-curator
#0 2.254 Downloading https://files.pythonhosted.org/packages/cc/ea/997d2d2386cd3beab4f660a4113d441cec110617806baffd322654744778/elasticsearch_curator-5.8.4-py2.py3-none-any.whl (106kB)
#0 2.414 Collecting requests>=2.25.1 (from elasticsearch-curator)
#0 3.089 Downloading https://files.pythonhosted.org/packages/a5/61/a867851fd5ab77277495a8709ddda0861b28163c4613b011bc00228cc724/requests-2.28.1.tar.gz (109kB)
#0 3.204 Complete output from command python setup.py egg_info:
#0 3.204
#0 3.204 ==========================
#0 3.204 Unsupported Python version
#0 3.204 ==========================
#0 3.204 This version of Requests requires at least Python 3.7, but
#0 3.204 you're trying to install it on Python 2.7. To resolve this,
#0 3.204 consider upgrading to a supported Python version.
#0 3.204
#0 3.204 If you can't upgrade your Python version, you'll need to
#0 3.204 pin to an older version of Requests (<2.28).
#0 3.204
#0 3.204 ----------------------------------------
#0 3.208 Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-lpik9U/requests/
#0 4.203 You are using pip version 8.1.1, however version 22.2 is available.
#0 4.203 You should consider upgrading via the 'pip install --upgrade pip' command.