[devtools] Fix database creation issues for CubicWebTestTC tests
To reproduce (with a purged repo):
* python web/test/test_jscript.py
* python web/test/unittest_views_xmlrss.py
The '__default_empty_db__' will contain the wrong 'base_url'
configuration, thus breaking URLs in the xmlrss tests.
Closes #9297611.
[MESSAGES CONTROL]
disable-msg = C0301
[VARIABLES]
# Enable / disable this checker
enable-variables = yes
additional-builtins = _, display_name
[BASIC]
required-attributes=
attr-rgx = (w|[a-z_][a-z0-9_]{2,30})
variable-rgx = (w|[a-z_][a-z0-9_]{2,30})$
argument-rgx = (w|[a-z_][a-z0-9_]{2,30})$
[TYPECHECK]
generated-members=debug,info,notice,warning,error,critical,exception