msgpack incompatibility with encoding field

[Nicolas Belouin]

msgpack in its 1.0.0 version dropped support for the encoding field.
A change similar to https://opendev.org/openstack/oslo.serialization/commit/d5855294a891b91a6c87977128b19b9bb0588f87 is necessary to ensure compatibility with newer version of msgpack.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/713496

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/713496
Committed: https://git.openstack.org/cgit/openstack/oslo.privsep/commit/?id=f19765c683ce847f8d0ae0499d9e67c41114c0b7
Submitter: Zuul
Branch: master

commit f19765c683ce847f8d0ae0499d9e67c41114c0b7
Author: Ben Nemec <email address hidden>
Date: Tue Mar 17 17:28:58 2020 +0000

    Make compatible with msgpack 1.0.0

    There are a couple of things that changed in msgpack 1.0.0 that were
    breaking oslo.privsep:

    1) The encoding parameter to Unpacker was removed. This has been
       deprecated for a while in favor of the `raw` parameter[0], so this
       change switches to using raw.

    2) The strict_map_key parameter default was changed from False to
       True.[1] I haven't found an explanation of why this was done, but
       we can explicitly set it False to maintain the previous behavior.

    Change-Id: Ia97ecf965d807f12524d5b6602446934b5813ce6
    Closes-Bug: 1855914
    Closes-Bug: 1864811
    0: https://msgpack-python.readthedocs.io/en/latest/api.html#msgpack.Unpacker
    1: https://github.com/msgpack/msgpack-python/pull/392/commits/6e1d12c0a2072572890cbb124b94cb08b582dd2d

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/oslo.privsep 2.1.0 release.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/train
Review: https://review.opendev.org/757033

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/757033
Committed: https://git.openstack.org/cgit/openstack/oslo.privsep/commit/?id=ced0e7b33b617fbfd9137cf2917ab279092dbd7f
Submitter: Zuul
Branch: stable/train

commit ced0e7b33b617fbfd9137cf2917ab279092dbd7f
Author: Ben Nemec <email address hidden>
Date: Tue Mar 17 17:28:58 2020 +0000

    Make compatible with msgpack 1.0.0

    There are a couple of things that changed in msgpack 1.0.0 that were
    breaking oslo.privsep:

    1) The encoding parameter to Unpacker was removed. This has been
       deprecated for a while in favor of the `raw` parameter[0], so this
       change switches to using raw.

    2) The strict_map_key parameter default was changed from False to
       True.[1] I haven't found an explanation of why this was done, but
       we can explicitly set it False to maintain the previous behavior.

    Closes-Bug: 1855914
    Closes-Bug: 1864811
    0: https://msgpack-python.readthedocs.io/en/latest/api.html#msgpack.Unpacker
    1: https://github.com/msgpack/msgpack-python/pull/392/commits/6e1d12c0a2072572890cbb124b94cb08b582dd2d

    Change-Id: Ia97ecf965d807f12524d5b6602446934b5813ce6
    Closes-Bug: 1899140
    (cherry picked from commit f19765c683ce847f8d0ae0499d9e67c41114c0b7)