pgAdmin 4 commit: Update required ChromeDriver version for current vers

Update required ChromeDriver version for current versions of Chrome. Fixes #3219

This requires an update to build/test envs:

pip uninstall chromedriver_installer
pip install -r regression/requirements.txt

Branch
------
master

Details
-------
https://git.postgresql.org/gitweb?p=pgadmin4.git;a=commitdiff;h=48319d56df0a252861602a2439c7ad91af29d4a0
Author: Murtuza Zabuawala <murtuza(dot)zabuawala(at)enterprisedb(dot)com>

Modified Files
--------------
web/regression/requirements.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)