List of best mirrors for IP address 3.149.234.50, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/raspbian/pool/main/s/shim-helpers-amd64-signed/shim-helpers-amd64-signed_1+15.8+1~deb12u1.dsc