Correct CI for building on windows, keys changed on msys2.

vtraag / leidenalg

Implementation of the Leiden algorithm for various quality functions to be used with igraph in Python.

GNU General Public License v3.0

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Correct CI for building on windows, keys changed on msys2. #44

Closed vtraag closed 4 years ago

vtraag commented 4 years ago

It turned out that some new maintainers became responsible for msys2, which was accompanied by a change in keys. See https://www.msys2.org/news/#2020-06-29-new-packagers for more details. This PR installs those keys, as instructed.