pipeline fix for python 3.6 & 3.7

Author: 0xW1sKy

Dockerfile.qa

@@ -20,7 +20,7 @@ RUN apt-get install -y \
   python3-pip
 
 # install distutils.util
-RUN if [ $PYTHON_VERSION = '3.7' ] ; then \
+RUN if [[ $PYTHON_VERSION =~ ^3.[67]$ ]] ; then \
   apt-get install -y python$PYTHON_VERSION-distutils python3-distutils-extra python3-apt --reinstall ;\
   elif [ $PYTHON_VERSION != '3.10' ] ; then \
   apt-get install -y python3-distutils python3-distutils-extra python3-apt --reinstall ; \