[bug#71146] [PATCH] gnu: kallisto: Update to 0.50.1

[Ricardo Wurmus]

Thank you for the patch!

> I had to modify the 'do-not-use-bundled-htslib snippet to make one
> regex more selective---in this new version it the previous regex was
> mistakenly modifying parts of CMakeLists.txt other than the intended
> one.

It looks like this might not be working as intended.  I used:

    guix gc -R $(./pre-inst-env guix build kallisto)

and it shows me that the newly built kallisto does not link with our
htslib.  Perhaps it used the static library?

-- 
Ricardo