⬆️ Removed bokeh dependency + upgrade reqs

[sanderegg]

What do these changes do?

• removes bokeh dependency

Related issue/s

fixes ITISFoundation/osparc-issues#885
fixes ITISFoundation/osparc-issues#675

How to test

Checklist

[codecov]

Codecov Report

Merging #49 (96a7774) into main (a83d990) will increase coverage by 1.5%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##            main     #49     +/-   ##
=======================================
+ Coverage   84.6%   86.2%   +1.5%     
=======================================
  Files          8       8             
  Lines        377     377             
=======================================
+ Hits         319     325      +6     
+ Misses        58      52      -6     

Flag	Coverage Δ
integrationtests	81.4% <ø> (+1.5%)	⬆️
unittests	42.4% <ø> (ø)

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

Impacted Files	Coverage Δ
...server/src/osparc_gateway_server/backend/osparc.py	87.4% <0.0%> (+3.9%)	⬆️

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