[TVMSCRIPT] Add synr dependency in preparation for tvmscript diagnost…

…ics overhaul. (apache#6795)

docker/install/ubuntu_install_python_package.sh

@@ -21,4 +21,4 @@ set -u
 set -o pipefail
 
 # install libraries for python package on ubuntu
-pip3 install six numpy pytest cython decorator scipy tornado typed_ast pytest pytest-xdist pytest-profiling mypy orderedset attrs requests Pillow packaging cloudpickle
+pip3 install six numpy pytest cython decorator scipy tornado typed_ast pytest pytest-xdist pytest-profiling mypy orderedset attrs requests Pillow packaging cloudpickle synr