Get rid of printing

[gdalle]

For bipartite coloring from a file I get these random prints from ColPack even though verbose = false:

Found file /home/runner/work/ColPack.jl/ColPack.jl/test/J.mtx
Graph of Market Market type: [matrix coordinate pattern general]

Anything we can do @amontoison ?

[amontoison]

I commented these output in the C++ code.

[gdalle]

Awesome, how can I pull these changes in the PR https://github.com/exanauts/ColPack.jl/actions/runs/9484331575/job/26133579453?pr=25 ?

[amontoison]

I need to release ColPack_jll.jl v0.4.1 with Yggdrasil.

[gdalle]

yeah let's wait until we're sure our changes are correct then