Bump pbr from 5.4.4 to 5.4.5 in /backend/uclapi (#2266)
Bump pbr from 5.4.4 to 5.4.5 in /backend/uclapi (#2266)

Bumps [pbr](https://docs.openstack.org/pbr/latest/) from 5.4.4 to 5.4.5.

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>

Co-authored-by: dependabot-preview[bot] <6a4c1c4838f800d1998274cd5234e1f65c55e90c@users.noreply.github.com>
Co-authored-by: Zak Morgan <790dcc573f28bbefe762dcd8b9f97f831a325d26@gmail.com>
uclapi/uclapi,uclapi/uclapi,uclapi/uclapi,uclapi/uclapi