Client lost the connection to the scheduler error in MM tasks

[wvangeit]

Seen during investigation of #1951:

Some of 50 tasks (5-10), return a failed state, due to the above error

project id:
c9e8337e-57e8-11f0-91bd-0242ac178148
node id:
adbb54e7-3e4a-5e35-812c-7b5a956f23fa
function job id:
90dabc60-d400-43b0-8ea2-8235b0517e1f

[sanderegg]

fixed by ITISFoundation/osparc-simcore#8341