bioinfo: bump version to 0.2.3

[schloegl]

No description provided.

[mmuetzel]

Thank you for the update. ♥️

I fixed a few issues with the PR (and with older parts of the file).
Please have a look at the changes for future updates.
To calculate the checksum, you can use Octave on the downloaded tarball with a command like hash ('sha256', fileread ('octmat-bioinfo-bioinfo-0.2.1.tar.gz')).

With that all tests here are passing. 🎉

[mmuetzel]

This PR was adding an old release to the packages index. Since that release has been around for a couple of years and it isn't a hard error, I didn't halt merging the PR on that. But for the next releases (if there are any), please update the version number and date in the DESCRIPTION file of the repository before adding the tag. Currently, that file still uses the data for the earlier release:
https://github.com/schloegl/octmat-bioinfo/blob/a74ca57046d1b9d998f31164eb551b700b4024c2/DESCRIPTION#L2-L3

Version: 0.2.2
Date: 2021-07-28

The information in that file is what an Octave user will see, e.g., for pkg list bioinfo or in checks with verLessThan.