build: upgrade to C++23

Meson 1.1.1 and GCC-13 both support C++23 and a sufficient portion of
the standard has been implemented.  Upgrade the build to leverage it.

Change-Id: I224f99ef6e429096968295ec28e98a2a443bdace
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meson.build b/meson.build
index 9bdbd3b..946aaef 100644
--- a/meson.build
+++ b/meson.build
@@ -6,10 +6,10 @@
   default_options: [
    'warning_level=3',
    'werror=true',
-   'cpp_std=c++20',
+   'cpp_std=c++23',
   ],
   license: 'Apache-2.0',
-  meson_version: '>=0.58.0',
+  meson_version: '>=1.1.1',
 )
 
 # version info from git