Report errors during user cleanup

[GitHK]

What do these changes do?

Improves the workings of the GC to still continue cleaning if there are errors with some user and project data.

Related issue number

How to test

Checklist

• Did you change any service's API? Then make sure to bundle document and upgrade version (make openapi-specs, git commit ... and then make version-*)
• Unit tests for the changes exist
• Runs in the swarm
• Documentation reflects the changes
• New module? Add your github username to .github/CODEOWNERS

[codecov]

Codecov Report

Merging #2013 (5beda2f) into master (5b01a28) will increase coverage by 1.7%.
The diff coverage is 50.0%.

@@           Coverage Diff            @@
##           master   #2013     +/-   ##
========================================
+ Coverage    72.0%   73.7%   +1.7%     
========================================
  Files         390     390             
  Lines       14346   14350      +4     
  Branches     1441    1441             
========================================
+ Hits        10335   10584    +249     
+ Misses       3650    3381    -269     
- Partials      361     385     +24     

Flag	Coverage Δ
integrationtests	63.2% <50.0%> (+<0.1%)	⬆️
unittests	67.7% <50.0%> (-0.1%)	⬇️

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

Impacted Files	Coverage Δ
...ce_webserver/resource_manager/garbage_collector.py	76.6% <50.0%> (-2.0%)	⬇️
...erver/src/simcore_service_webserver/director_v2.py	88.4% <0.0%> (+2.6%)	⬆️
...es/sidecar/src/simcore_service_sidecar/rabbitmq.py	89.7% <0.0%> (+4.4%)	⬆️
.../sidecar/src/simcore_service_sidecar/log_parser.py	81.8% <0.0%> (+16.8%)	⬆️
...ervices/sidecar/src/simcore_service_sidecar/cli.py	65.8% <0.0%> (+19.5%)	⬆️
...vices/sidecar/src/simcore_service_sidecar/utils.py	80.7% <0.0%> (+29.4%)	⬆️
services/sidecar/src/simcore_service_sidecar/db.py	92.0% <0.0%> (+40.0%)	⬆️
...rvices/sidecar/src/simcore_service_sidecar/core.py	71.4% <0.0%> (+46.6%)	⬆️
...es/sidecar/src/simcore_service_sidecar/executor.py	79.6% <0.0%> (+56.1%)	⬆️