GitLab compatibility issue

When trying to compile legacy kernel for Rock 3A, where sources sits on Gitlab, it fails with:

[🐳|🌱] artifact [ kernel :: kernel() ]
[🐳|🌱] Producing new & caching [ GIT_INFO_KERNEL ]
[🐳|🌱] Fetching SHA1 of tag linux-5.10-gen-rkr3.6^{} [ https://gitlab.com/rk3588_linux/rk/kernel.git ]
[🐳|🌱] SHA1 of tag linux-5.10-gen-rkr3.6^{} [ 'd46f81d42d19bf298fd608db3b46467fe4e6f755' ]
[🐳|💥] error! [ Failed to fetch Makefile from 'https://gitlab.com/rk3588_linux/rk/-/raw/d46f81d42d19bf298fd608db3b46467fe4e6f755/Makefile' ]