🎨 Fixes Deprecation Warning on redis and aiohttp

[pcrespov]

What do these changes do?

Fixes deprecation warning in redis library, provided that redis==5.0.4 already repo-wide

DeprecationWarning: Call to deprecated close. (Use aclose() instead) -- Deprecated since version 5.0.1.
    await client.close(close_connection_pool=True)

• Fixes deprecation error in aiohttp library (SEE Deprecate returning web.HTTPException from handlers and middlewares aio-libs/aiohttp#2415)

 ... /aiohttp/web_protocol.py:451: DeprecationWarning: returning HTTPException object is deprecated (#2415) and will be removed, please raise the exception instead

[codecov]

Codecov Report

Attention: Patch coverage is 28.57143% with 5 lines in your changes missing coverage. Please review.

Project coverage is 88.4%. Comparing base (cafbf96) to head (6f2b552).
Report is 301 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #5996      +/-   ##
=========================================
+ Coverage    84.5%   88.4%    +3.9%     
=========================================
  Files          10    1295    +1285     
  Lines         214   53713   +53499     
  Branches       25     820     +795     
=========================================
+ Hits          181   47534   +47353     
- Misses         23    6004    +5981     
- Partials       10     175     +165     

Flag	Coverage Δ
integrationtests	64.7% <28.5%> (?)
unittests	86.3% <14.2%> (+1.7%)	⬆️

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

Files	Coverage Δ
...simcore_service_webserver/director_v2/_handlers.py	92.5% <28.5%> (ø)

... and 1266 files with indirect coverage changes