tree 545fce8a2439e1d360e7e33423f3da34b64ee461
parent d8543d09dcfa2c7e82f0bb80010107e71dcbb01a
author Patrick Williams <patrick@stwcx.xyz> 1618429765 -0500
committer Patrick Williams <patrick@stwcx.xyz> 1618429778 -0500

build: switch to C++20

Per [1], we should be building with the latest C++ version.  C++20
has been final and approved for over 6 months now, so it is about
time for us to switch.

1. https://github.com/openbmc/docs/blob/master/cpp-style-and-conventions.md#code-should-be-written-with-modern-practices

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: Iefbe930f9da1d134696aaec18949b2ac1d956f99