The 'date' in members.yaml is supposed to be the election date
(or start date) of each member's term. For example, it is rendered
as "Elected On" in the TC's homepage [0]. The 'date' for TC members
elected in September 2022 was recorded as September 2023, so correct
this.
[0] https://governance.openstack.org/tc/#current-members
Change-Id: If2d4fc590bef3a983f7f03bb2e5c05fd706f57f6