Update Octave package

[archisman-panigrahi]

Octave 7.1 has been released. https://www.gnu.org/software/octave/news/release/2022/04/06/octave-7.1.0-released.html

[jopilote]

is the 7.1 version currently installed by its-pointless, sh script? Or the 6.X ?

[archisman-panigrahi]

@jopilote Currently the repository hosts version 6.1.0