Update implemented C++23 language features in "Microsoft C/C++ language conformance by Visual Studio version"

[Rageking8]

These are the updated C++23 language features and their respective references for quick verification of when it's implemented:

Feature	Supported	Reference
P0330R8 Literal Suffix for (signed) size_t	VS 2022 17.13	https://devblogs.microsoft.com/cppblog/msvc-compiler-updates-in-visual-studio-2022-version-17-13/#c++23-features
P0847R7 Deducing this	VS 2022 17.2	https://devblogs.microsoft.com/cppblog/cpp23-deducing-this/
P1102R2 Down with ()!	VS 2022 17.14	https://devblogs.microsoft.com/cppblog/whats-new-for-cpp-developers-in-visual-studio-2022-17-14/#compiler
P1169R4 static operator()	VS 2022 17.14	https://devblogs.microsoft.com/cppblog/whats-new-for-cpp-developers-in-visual-studio-2022-17-14/#compiler
P1938R3 if consteval	VS 2022 17.14	https://devblogs.microsoft.com/cppblog/whats-new-for-cpp-developers-in-visual-studio-2022-17-14/#compiler
P2128R6 Multidimensional subscript operator	VS 2022 17.12	https://devblogs.microsoft.com/cppblog/msvc-compiler-language-updates-in-visual-studio-2022-version-17-12/#c++23-features:
P2173R1 Attributes on Lambda-Expressions	VS 2022 17.14	https://devblogs.microsoft.com/cppblog/whats-new-for-cpp-developers-in-visual-studio-2022-17-14/#compiler
P2242R3 Non-literal variables (and labels and gotos) in constexpr functions	VS 2022 17.13	https://devblogs.microsoft.com/cppblog/msvc-compiler-updates-in-visual-studio-2022-version-17-13/#c++23-features
P2334R1 preprocessing directives elifdef and elifndef	VS 2022 17.10	https://learn.microsoft.com/en-us/cpp/overview/cpp-conformance-improvements?view=msvc-170#added-support-for-elifdef-and-elifndef
P2493R0 Missing feature test macros for C++20 core papers	VS 2022 17.2	https://en.cppreference.com/w/cpp/compiler_support.html#cpp23
P2589R1 static operator[]	VS 2022 17.14	https://devblogs.microsoft.com/cppblog/whats-new-for-cpp-developers-in-visual-studio-2022-17-14/#compiler