[ldapfeed] make code compatible with ldap3>=2 * Some constants have been renamed. * Directly bind when data-cnx-dn/data-cnx-password are provided, some servers, including ours require this. * Use raise_exceptions=True to avoid ignored ldap errors * raise in case of failed anonymous bind * do not search for "dn" attribute because this raise an "invalid attribute" with new ldap3 versions * Password is now returned as bytes, so no longer need to encode them before crypt. * modification_date is now returned as a datetime object Co-Authored-By: Philippe Pepiot <philippe.pepiot@logilab.fr> Closes #16073071

^build$
^dist$
\.egg-info$
^.tox$
^.cache$
\.pyc$
\.pyo$
\.bak$
\.old$
\~$
\#.*?\#$
\.swp$
^doc/book/en/apidoc$
\.old$
\.pybuild
cubicweb/server/test/data/slapd.conf
debian/python-cubicweb
debian/*.log
debian/*.substvars
debian/cubicweb-doc
debian/cubicweb
debian/files

syntax: regexp
.*/data.*/database/.*
.*/data/ldapdb/.*
.*/data/uicache/
.*/data/libpython/cubicweb_.*/i18n/.*\.po
^doc/html/
^doc/doctrees/
^doc/book/en/devweb/js_api/
^doc/_build
^doc/js_api/
test-results.xml
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