Adapt MWE2 versions to match Xtext #363

Job	Run time
create-splash-image	4s
collect-github-api-artifacts	3s
build-linux-user	1h 3m 30s
build-linux-user-ci	27m 51s
build-linux-dev	57m 36s
build-linux-dev-ci	32m 9s
build-linux-dev-hipe	41m 20s
build-macos-dev	58m 26s
build-macos-dev-hipe	53m 55s
build-macos-user	36m 26s
build-windows-dev-hipe	34m 54s
build-windows-dev	36m 25s
build-windows-user	37m 36s
create-release	0s
	8h 0m 15s

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