[test] Use bare unittest in unittest_rtags

[rtags] Docstring fix

[cleanup] flake8 rtags.py

[pkg] Require passlib >= 1.7.0 Since bc9d901cb9e6 we use 1.7.0 API, update packaging accordingly.

[web/http_headers] do not crash when IfModifiedSince is empty string (closes #16527954)

[pkg] Set an upper bound to passlib We're using a deprecated API and are getting the following deprecation warning: :: the method passlib.context.CryptContext.encrypt() is deprecated as of Passlib 1.7, and will be removed in Passlib 2.0, use CryptContext.hash() instead. So let's make sure we're getting a working library. [ci skip]

[cwconfig] Retrieve real path of cubes directory Since logilab-common 1.3.0, we have real path expansion modutils.modpath_from_file. But the extrapath parameter that is passed from cubicweb.schema reader may still have symlinks, so expand them here to hopefully have consistent comparison in modpath_from_file.

[server] Use CryptContext's hash method instead of deprecated encrypt method Getting rid of the following deprecation warning: :: the method passlib.context.CryptContext.encrypt() is deprecated as of Passlib 1.7, and will be removed in Passlib 2.0, use CryptContext.hash() instead.

Merge public heads

[cwctl] on upgrade, clear instance_md5_version cache The generate-static-datadir depends on a correct config.instance_md5_version(), and we just invalidated it by upgrading the instance.