BugFix: fixes awaitables and broad-exceptions in garbage-collector

[pcrespov]

What do these changes do?

Another group of fixes from PR #2079 associated with issues in the garbage collector.

• broad exceptions catches were suppressing CancelledError which avoided the gc. Since the gc is a periodic background task it could never be cancelled
• some extra fixes in garbage_collector.py
• some coroutines were not awaited

How to test

make devenv
cd packages/postgres-database
make install-dev
make tests
cd ...
cd services/web/server
make install-dev
make test-dev-unit

cover this bugfix

[codecov]

Codecov Report

Merging #2104 (86771fc) into master (5b03724) will increase coverage by 0.0%.
The diff coverage is 86.6%.

@@          Coverage Diff           @@
##           master   #2104   +/-   ##
======================================
  Coverage    73.4%   73.4%           
======================================
  Files         456     456           
  Lines       17195   17197    +2     
  Branches     1690    1689    -1     
======================================
+ Hits        12633   12637    +4     
+ Misses       4112    4111    -1     
+ Partials      450     449    -1     

Flag	Coverage Δ
integrationtests	65.5% <75.5%> (+<0.1%)	⬆️
unittests	67.0% <73.3%> (-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	75.7% <82.3%> (-0.4%)	⬇️
.../sidecar/src/simcore_service_sidecar/log_parser.py	82.0% <100.0%> (ø)
...server/src/simcore_service_webserver/groups_api.py	91.6% <100.0%> (+<0.1%)	⬆️
...mcore_service_webserver/resource_manager/config.py	100.0% <100.0%> (ø)
.../server/src/simcore_service_webserver/users_api.py	93.9% <100.0%> (+<0.1%)	⬆️
...webserver/computation_comp_tasks_listening_task.py	91.0% <0.0%> (+3.3%)	⬆️

[GitHK]

Very nice, I see you reduced the scope of error catching in the GC to only database errors.

I have only 2 rename requests