Fix tox failures from new resolver in pip

New pip was released on Dec 3, 2020 which breaks downloads
from pypi for some URLs.

New virtualenv was released Dec 7 which includes the new pip.

The new pip uses a different resolver which fails with many
of the components installed by pip.  These components
may need to be fixed by later commits, since the legacy
resolver is being removed completely in early 2021.

Change-Id: Ifcbd8965e2ef0b53dae0c878c2a0f2bd91b572c2
Closes-Bug: 1907125
Signed-off-by: albailey <Al.Bailey@windriver.com>

distributedcloud/tox.ini

@@ -18,7 +18,7 @@ cgtsclient_src_dir = ../../config/sysinv/cgts-client/cgts-client
 cgcs_patch_src_dir = ../../update/cgcs-patch/cgcs-patch
 
 [testenv]
-install_command = pip install \
+install_command = pip install --use-deprecated legacy-resolver -v -v -v \
     -c ./upper-constraints.txt \
     -c https://opendev.org/openstack/requirements/raw/branch/stable/stein/upper-constraints.txt \
     {opts} {packages}
@@ -40,6 +40,10 @@ whitelist_externals =
 
 [testenv:py27]
 basepython = python2.7
+install_command = pip install -v -v -v \
+    -c ./upper-constraints.txt \
+    -c https://opendev.org/openstack/requirements/raw/branch/stable/stein/upper-constraints.txt \
+    {opts} {packages}
 deps = -r{toxinidir}/test-requirements.txt
        -r{toxinidir}/requirements.txt
        keyring

test-requirements.txt

@@ -1,4 +1,3 @@
 PyYAML>=3.1.0
 yamllint>=0.5.2
 mock>=2.0 # BSD
-bandit!=1.6.0,>=1.1.0,<2.0.0

tox.ini

@@ -4,7 +4,7 @@ minversion = 2.3
 skipsdist = True
 
 [testenv]
-install_command = pip install \
+install_command = pip install --use-deprecated legacy-resolver -v -v -v \
     -c https://opendev.org/openstack/requirements/raw/branch/stable/stein/upper-constraints.txt \
     {opts} {packages}
 setenv =
@@ -87,4 +87,5 @@ whitelist_externals = rm
 basepython = python3
 description = Bandit code scan for *.py files under config folder
 deps = -r{toxinidir}/test-requirements.txt
+       bandit
 commands = bandit -r {toxinidir}/ -x '**/.tox/**,**/.eggs/**' -lll