How to link libgit2 as a submodule using cmake

I am working on simple minecraft launcher

https://github.com/skorakora/ZielonaAlkaidaLauncher I would like to add libgit2 to it as git submodule. I have tried "git submodule add ``https://github.com/libgit2/libgit2`` extern/libgit2"

I also wrote CmakeLists.txt to add libgit2 to repo.

Cmake generates .sln fine but when I try to build project in visual studio it throws error:
LNK1104 cannot open file git2.lib
All I know for now there is something wrong with cmakelists.txt but I have no idea what is wrong.

My goal is to add libgit2 as git submodule to my repository
PS. Sorry for polish in comments and readme

I have tried to rewrite cmakelists.txt, but that did not helped

My Cmakelists.txt:

cmake_minimum_required(VERSION 3.15)
project(MinecraftLauncher)

set(CMAKE_CXX_STANDARD 17)

# GLFW jako submoduł
add_subdirectory(extern/glfw)

# IMGUI (ręczna konfiguracja)
file(GLOB IMGUI_SRC
    extern/imgui/*.cpp
    extern/imgui/backends/imgui_impl_glfw.cpp
    extern/imgui/backends/imgui_impl_opengl3.cpp
)

add_library(imgui STATIC ${IMGUI_SRC})
target_include_directories(imgui PUBLIC
    extern/imgui
    extern/imgui/backends
)
target_link_libraries(imgui PUBLIC glfw)

# libgit2 jako submoduł (konfiguracja + dodanie)
set(BUILD_SHARED_LIBS OFF CACHE BOOL "Build static libgit2" FORCE)
set(BUILD_CLAR OFF CACHE BOOL "Disable libgit2 tests" FORCE)
add_subdirectory(extern/libgit2)

# Główna aplikacja
add_executable(MinecraftLauncher main.cpp)

target_include_directories(MinecraftLauncher PRIVATE
    extern/imgui
    extern/imgui/backends
)

target_link_libraries(MinecraftLauncher PRIVATE
    glfw
    imgui
    git2               # lub libgit2::git2 jeśli występuje jako alias
    opengl32
)