refactor: Use run in update_test_databases_if_required.
refactor: Use run in update_test_databases_if_required.

Use `run` to run the tools, and take advantage
that `rebuild-dev-database` is really the same
as `generate-fixtures --force`.

zulip/zulip,andersk/zulip,synicalsyntax/zulip,brainwane/zulip,kou/zulip,andersk/zulip,shubhamdhama/zulip,timabbott/zulip,rht/zulip,andersk/zulip,showell/zulip,synicalsyntax/zulip,rht/zulip,showell/zulip,rht/zulip,kou/zulip,kou/zulip,hackerkid/zulip,punchagan/zulip,timabbott/zulip,showell/zulip,timabbott/zulip,rht/zulip,rht/zulip,eeshangarg/zulip,punchagan/zulip,synicalsyntax/zulip,punchagan/zulip,shubhamdhama/zulip,andersk/zulip,timabbott/zulip,synicalsyntax/zulip,andersk/zulip,hackerkid/zulip,hackerkid/zulip,eeshangarg/zulip,synicalsyntax/zulip,hackerkid/zulip,punchagan/zulip,rht/zulip,brainwane/zulip,zulip/zulip,synicalsyntax/zulip,punchagan/zulip,shubhamdhama/zulip,brainwane/zulip,kou/zulip,punchagan/zulip,timabbott/zulip,kou/zulip,hackerkid/zulip,showell/zulip,showell/zulip,eeshangarg/zulip,rht/zulip,zulip/zulip,hackerkid/zulip,kou/zulip,zulip/zulip,shubhamdhama/zulip,showell/zulip,eeshangarg/zulip,andersk/zulip,timabbott/zulip,zulip/zulip,kou/zulip,shubhamdhama/zulip,timabbott/zulip,showell/zulip,shubhamdhama/zulip,brainwane/zulip,zulip/zulip,zulip/zulip,andersk/zulip,hackerkid/zulip,shubhamdhama/zulip,punchagan/zulip,brainwane/zulip,eeshangarg/zulip,brainwane/zulip,eeshangarg/zulip,synicalsyntax/zulip,brainwane/zulip,eeshangarg/zulip