hatari: 1.8.0 -> 2.1.0

Semi-automatic update. These checks were performed:

- built on NixOS
- ran `/nix/store/9fnkx4rgnai6qvkqdwyhx9824xqdqawf-hatari-2.1.0/bin/hmsa -h` got 0 exit code
- ran `/nix/store/9fnkx4rgnai6qvkqdwyhx9824xqdqawf-hatari-2.1.0/bin/hmsa --help` got 0 exit code
- ran `/nix/store/9fnkx4rgnai6qvkqdwyhx9824xqdqawf-hatari-2.1.0/bin/hmsa -V` and found version 2.1.0
- ran `/nix/store/9fnkx4rgnai6qvkqdwyhx9824xqdqawf-hatari-2.1.0/bin/hmsa -v` and found version 2.1.0
- ran `/nix/store/9fnkx4rgnai6qvkqdwyhx9824xqdqawf-hatari-2.1.0/bin/hmsa --version` and found version 2.1.0
- ran `/nix/store/9fnkx4rgnai6qvkqdwyhx9824xqdqawf-hatari-2.1.0/bin/hmsa -h` and found version 2.1.0
- ran `/nix/store/9fnkx4rgnai6qvkqdwyhx9824xqdqawf-hatari-2.1.0/bin/hmsa --help` and found version 2.1.0
- found 2.1.0 with grep in /nix/store/9fnkx4rgnai6qvkqdwyhx9824xqdqawf-hatari-2.1.0
- found 2.1.0 in filename of file in /nix/store/9fnkx4rgnai6qvkqdwyhx9824xqdqawf-hatari-2.1.0

cc "@fuuzetsu"