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: I2611b11724b134077becb1c193a94a2f50e5b685
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meson.build b/meson.build
index a531922..de73ee8 100644
--- a/meson.build
+++ b/meson.build
@@ -4,13 +4,13 @@
     default_options: [
         'warning_level=3',
         'werror=true',
-        'cpp_std=c++20',
+        'cpp_std=c++23',
         'buildtype=debugoptimized',
         'prefix=/usr'
     ],
     license: 'Apache-2.0',
     version: '1.0',
-    meson_version: '>=0.58.0',
+    meson_version: '>=1.1.1',
 )
 
 cxx = meson.get_compiler('cpp')