fixes and issue with e2e utils

[GitHK]

What do these changes do?

Addresses the issue below:

Tutorial error: TypeError: Cannot use 'in' operator to search for 'state' in null

Related issue/s

How to test

Checklist

[codecov]

Codecov Report

Merging #2311 (c6be0ee) into master (535b1ba) will decrease coverage by 0.0%.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           master   #2311     +/-   ##
========================================
- Coverage    71.7%   71.7%   -0.1%     
========================================
  Files         506     506             
  Lines       19912   19912             
  Branches     1949    1949             
========================================
- Hits        14294   14293      -1     
- Misses       5142    5143      +1     
  Partials      476     476             

Flag	Coverage Δ
integrationtests	62.0% <ø> (+<0.1%)	⬆️
unittests	67.1% <ø> (-0.1%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../director/src/simcore_service_director/producer.py	60.6% <0.0%> (-0.3%)	⬇️

[odeimaiz]

I think that this fix is obsolete since the makeRequest response changed, but an extra check doesn't harm.