svt-av1-psy: set `meta.mainProgram`

Changed files
+1
pkgs
by-name
sv
svt-av1-psy
+1
pkgs/by-name/sv/svt-av1-psy/package.nix
···
];
platforms = lib.platforms.unix;
maintainers = with lib.maintainers; [ johnrtitor ];
+
mainProgram = "SvtAv1EncApp";
};
})