Update git submodules

* Update oslo.serialization from branch 'master'
  - Remove Python 3-specific conditional in dump_as_bytes
    
    Now that we only support Python 3 we don't need logic to handle
    Python 2.
    
    Change-Id: I33747d25bc4c67ee13654ed132edf7413371c1dc
This commit is contained in:
Ben Nemec 2020-03-06 17:17:33 +00:00 committed by Gerrit Code Review
parent 397eee98ba
commit 64808f0781

@ -1 +1 @@
Subproject commit ad356ea9c286c3bf3e953aa5b7c0c26766a28ad3
Subproject commit 909c17a77980ba179328cc8a715b0d510b73cb40