Complete V1 RC deployment capability gates

tools/web/check-dual-engine.sh

@@ -5,7 +5,7 @@ repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
 native_dir="${repo_root}/build_web/native"
 mkdir -p "${native_dir}"
 
-c++ -std=c++17 -O2 \
+c++ -std=c++20 -O2 \
   -I"${repo_root}/blender-5.2.0/source/blender/web_engine" \
   -I"${repo_root}/blender-5.2.0/extern/json/include" \
   "${repo_root}/blender-5.2.0/source/blender/web_engine/web_engine_api.cpp" \