From: Pavel Sobolev <contact@paveloom.dev>
Subject: [PATCH] Use system `Catch2`.

Signed-off-by: Pavel Sobolev <contact@paveloom.dev>

--- a/tests/CMakeLists.txt
+++ b/tests/CMakeLists.txt
@@ -1,5 +1,4 @@
-set(CATCH2_ROOT_DIR "${PROJECT_SOURCE_DIR}/thirdparty/Catch2")
-list(APPEND CMAKE_MODULE_PATH "${CATCH2_ROOT_DIR}/contrib")
+find_package(Catch2 REQUIRED)
 
 add_subdirectory(unit_test)