Updated mediawiki/skins
Project: mediawiki/skins/chameleon  598e6c6020399efe2659170bf7e4b593467417db

Use a valid spdx license idenfitier

See https://spdx.org/licenses/, as recommended by "composer validate"

Change-Id: Id0436e284c10f41e29edc60270a66cbdb1409f5c