chore(pkg): new patch release (0.2.12)

• A depreciation warning related to CubicWeb-Web had been removed.
• Minimum versions of dependencies have been upgrade. We should not have problems with that for a while.

--HG-- branch : 0.2

cubicweb_jsonschema/__pkginfo__.py

@@ -15,7 +15,7 @@
 web = 'https://www.cubicweb.org/project/%s' % distname
 
 __depends__ = {
-    'cubicweb': '>= 3.38.9, < 5.0.0',
+    'cubicweb': '>= 3.38.16, < 5.0.0',
     'cubicweb-web': '>= 0.3.1, < 1.3.0',
     'iso8601': None,
     'jsl': None,