Downgrade to C++20

diamondburned · diamondburned · commit f31240d166cd · 2024-04-30T18:36:57.000-07:00
diff --git a/compile_flags.txt b/compile_flags.txt
@@ -1,4 +1,4 @@
--std=c++23
+-std=c++20
 -Wall
 -Wextra
 -Werror
