[201911] [sonic-slave-jessie]: use pip to install nose package directly

[abdosi]

What/Why I did:
Same as #7257

Fixes for jessie docker slave:

2021-04-30T03:12:46.6947343Z Step 18/40 : RUN pip install mockredispy==2.9.3
2021-04-30T03:12:46.8378726Z  ---> Running in 4fcfb5f8fd10
2021-04-30T03:12:48.2022504Z Collecting mockredispy==2.9.3
2021-04-30T03:12:48.3352051Z   Downloading https://files.pythonhosted.org/packages/0a/f1/d7db33898151aa9a1d647654cac55d01a5a1302fa4244af5fb5d3021f848/mockredispy-2.9.3.tar.gz
2021-04-30T03:12:48.6407510Z     Complete output from command python setup.py egg_info:
2021-04-30T03:12:48.6409394Z     Couldn't find index page for 'nose' (maybe misspelled?)
2021-04-30T03:12:48.6410146Z     No local packages or download links found for nose
2021-04-30T03:12:48.6410782Z     Traceback (most recent call last):
2021-04-30T03:12:48.6411357Z       File "<string>", line 1, in <module>
2021-04-30T03:12:48.6412377Z       File "/tmp/pip-build-w2Gwnh/mockredispy/setup.py", line 29, in <module>
2021-04-30T03:12:48.6413377Z         'with_redis = mockredis.noseplugin:WithRedis'
2021-04-30T03:12:48.6414193Z       File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
2021-04-30T03:12:48.6414769Z         _setup_distribution = dist = klass(attrs)
2021-04-30T03:12:48.6415607Z       File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 262, in __init__
2021-04-30T03:12:48.6416367Z         self.fetch_build_eggs(attrs['setup_requires'])
2021-04-30T03:12:48.6417183Z       File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 287, in fetch_build_eggs
2021-04-30T03:12:48.6417703Z         replace_conflicting=True,
2021-04-30T03:12:48.6418442Z       File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 631, in resolve
2021-04-30T03:12:48.6419022Z         dist = best[req.key] = env.best_match(req, ws, installer)
2021-04-30T03:12:48.6420121Z       File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 874, in best_match
2021-04-30T03:12:48.6420789Z         return self.obtain(req, installer)
2021-04-30T03:12:48.6422199Z       File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 886, in obtain
2021-04-30T03:12:48.6423364Z         return installer(requirement)
2021-04-30T03:12:48.6424330Z       File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 338, in fetch_build_egg
2021-04-30T03:12:48.6424943Z         return cmd.easy_install(req)
2021-04-30T03:12:48.6425885Z       File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 630, in easy_install
2021-04-30T03:12:48.6426528Z         raise DistutilsError(msg)
2021-04-30T03:12:48.6427476Z     distutils.errors.DistutilsError: Could not find suitable distribution for Requirement.parse('nose')
2021-04-30T03:12:48.6428058Z     
2021-04-30T03:12:48.6428935Z     ----------------------------------------
2021-04-30T03:12:48.6488700Z �[91mCommand "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-w2Gwnh/mockredispy/

[MikeHcChen]

I found 202006, 202012 branches also need this patch, otherwise the building process will be failed.