Update .clang-format

Author: xrSimpodin

ogsr_engine/.clang-format

@@ -87,7 +87,7 @@ SpacesInContainerLiterals: true
 SpacesInCStyleCastParentheses: false
 SpacesInParentheses: false
 SpacesInSquareBrackets: false
-Standard: c++11
+Standard: c++20
 TabWidth: 4
 UseTab: Never
 ...