Update doctest to v2.5.0

Author: offa

script/ci.sh

@@ -26,7 +26,7 @@ fi
 # Function to install doctest
 _install_doctest() {
     cd "$REPO_DIR"
-    git clone --depth=1 --branch=v2.4.12 https://github.com/doctest/doctest
+    git clone --depth=1 --branch=v2.5.0 https://github.com/doctest/doctest
     cd doctest && mkdir -p build && cd build
     cmake .. -DDOCTEST_WITH_TESTS=OFF -DDOCTEST_WITH_MAIN_IN_STATIC_LIB=OFF -DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX
     cmake --build . --config Release --target install