Base image cleanup

#4

assigned to @deuerlei

added 1 commit

• ef6f5276 - Only remove EBRAINS packages for backwards compatibility

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added 1 commit

• 71ce688d - add wget

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added 1 commit

• 18f9d8eb - Add pyunicore back to base image (required by lab-ext)

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mentioned in commit 2d96537f

merged

mentioned in issue #4