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: I9c373a66b0345991726a6be778d7457b8483b075
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meson.build b/meson.build
index bcdc702..0a0303d 100644
--- a/meson.build
+++ b/meson.build
@@ -1,11 +1,11 @@
 project(
     'eStoraged',
     'cpp',
-    version: '1.0', meson_version: '>=0.59.0',
+    version: '1.0', meson_version: '>=1.1.1',
     default_options: [
       'warning_level=3',
       'werror=true',
-      'cpp_std=c++20',
+      'cpp_std=c++23',
     ],
 )