[omemo] Update CHANGELOG & manifest.ini

omemo/CHANGELOG

-2.8.4 / 2021-03-03
+2.8.6 / 2021-05-01
 - Fix attribute access
 
+2.8.5 / 2021-04-26
+- Correctly decrypt encoded URIs
+
+2.8.4 / 2021-03-03
+- Adapt to nbxmpp changes
+
 2.8.3 / 2021-03-03
 - Fix attribute access
 

omemo/manifest.ini

 [info]
 name: OMEMO
 short_name: omemo
-version: 2.8.5
+version: 2.8.6
 description: OMEMO is an XMPP Extension Protocol (XEP) for secure multi-client end-to-end encryption based on Axolotl and PEP. You need to install some dependencies, detailed in the installation instructions for your system in the GitLab wiki.
 authors: Bahtiar `kalkin-` Gadimov <bahtiar@gadimov.de>
  Daniel Gultsch <daniel@gultsch.de>