emulators/yuzu: unbreak fetch via mirror

fetch: https://codeload.github.com/yuzu-emu/yuzu/tar.gz/dc94882c90?dummy=/yuzu-emu-yuzu-s20240227-dc94882c90_GH0.tar.gz: Not Found
fetch: https://codeload.github.com/yuzu-emu/mbedtls/tar.gz/v2.16.9-115-g8c88150ca?dummy=/yuzu-emu-mbedtls-v2.16.9-115-g8c88150ca_GH0.tar.gz: Not Found
fetch: https://codeload.github.com/yuzu-emu/sirit/tar.gz/ab75463?dummy=/yuzu-emu-sirit-ab75463_GH0.tar.gz: Not Found
fetch: https://codeload.github.com/merryhime/dynarmic/tar.gz/6.6.2-15-gba8192d8?dummy=/merryhime-dynarmic-6.6.2-15-gba8192d8_GH0.tar.gz: Not Found