[ci] Minor change to fix building (#2644)

MSVC did not like that one of our variables was a constexpr since it was defined in the externals as a constexpr. Changed to const auto like the rest to ensure it built properly.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2644
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: Maufeat <sahyno1996@gmail.com>
Co-authored-by: Shinmegumi <shinmegumi@eden-emu.dev>
Co-committed-by: Shinmegumi <shinmegumi@eden-emu.dev>

src/yuzu/update_checker.cpp

@@ -58,7 +58,7 @@ std::optional<std::string> UpdateChecker::GetResponse(std::string url, std::stri
 
 std::optional<std::string> UpdateChecker::GetLatestRelease(bool include_prereleases)
 {
-    constexpr auto update_check_url = std::string{Common::g_build_auto_update_api};
+    const auto update_check_url = std::string{Common::g_build_auto_update_api};
     std::string update_check_path = fmt::format("/repos/{}", std::string{Common::g_build_auto_update_repo});
     try {
         if (include_prereleases) { // This can return either a prerelease or a stable release,