version on conda-forge is outdated

[yuxi-liu-wired]

panflute 2.0.5 managed to confuse itself on the simplest problem:

import panflute as pf
pf.convert_text("![Item](item.png)")

but somehow, panflute 2.3.0 doesn't have the problem. This wasted me an hour of struggles.

And somehow, panflute 2.0.5 is the latest version on conda-forge but somehow, pip can find panflute 2.3.0, probably because pip pulls from PyPl, and PyPl contains panflute 2.3.0.

Please update the package on conda-forge.