* gnu/packages/python.scm (python-pygit2): Update to 0.26.0.
* gnu/packages/patches/python-pygit2-disable-network-tests.patch: Skip one
more test. Use unittest.skipIf instead of deleting sections.
* gnu/packages/python.scm (python-pygit2, python2-pygit2)[source](patches):
New field.
* gnu/packages/patches/python-pygit2-disable-network-tests.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.