misc: remove sitepackages=True from tox.ini (#70163)

It needs getlasso3.sh to get Lasso from the environment (Lasso's python
binding cannot be installed through pip).

getlasso3.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+# Get venv site-packages path
+DSTDIR=`python3 -c 'import sysconfig; print(sysconfig.get_path("platlib"))'`
+
+# Clean up
+rm -f $DSTDIR/lasso.*
+rm -f $DSTDIR/_lasso.*
+
+# Link
+ln -sv /usr/lib/python3/dist-packages/lasso.py $DSTDIR/
+for SOFILE in /usr/lib/python3/dist-packages/_lasso.cpython-*.so
+do
+  ln -sv $SOFILE $DSTDIR/
+done
+
+exit 0

tox.ini

@@ -3,7 +3,6 @@ toxworkdir = {env:TMPDIR:/tmp}/tox-{env:USER}/wcs/{env:BRANCH_NAME:main}/{env:EX
 envlist = py3-django22-codestyle-coverage, pylint
 
 [testenv]
-sitepackages = true
 setenv =
     NUMPROCESSES={env:NUMPROCESSES:1}
     SETUPTOOLS_USE_DISTUTILS=stdlib
@@ -37,6 +36,7 @@ deps =
 # others...
     django22: django>=2.2,<2.3
 commands =
+    ./getlasso3.sh
     py.test {posargs:-v {env:COVERAGE:} --numprocesses={env:NUMPROCESSES:1} --dist loadfile --junitxml=junit-{envname}.xml tests/}
     codestyle: pre-commit run --all-files --show-diff-on-failure
 
@@ -71,4 +71,5 @@ deps =
     pre-commit
     pyzbar
 commands =
+    ./getlasso3.sh
     ./pylint.sh wcs/ tests/