bump latest Lmod version to 5.6.2, fully compatible w. EB

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
bump towards Lmod/5.6.4

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
bump date

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
updated towards upcoming Lmod/5.7

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
Merge pull request #971 from fgeorgatos/contrib_lmod_5.6.2

Contrib Lmod/5.7