⬆️ updates pip-tools==6.4.0 and pip~=21.3

[pcrespov]

What do these changes do?

Upgrades pip-tools since older version (<6.4) of pip-sync fails to run pip>21.3 (latest) jazzband/pip-tools#1503

• upgrades pip in all Dockerfile in repos
• upgrades pip-tools in all tooling requirements
• NOTE: in development, make sure to delete .venv folder and make devenv again to get the latests pip and pip-tools installed

[codecov]

Codecov Report

Merging #2592 (18a1111) into master (c194216) will increase coverage by 0.6%.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           master   #2592     +/-   ##
========================================
+ Coverage    76.5%   77.1%   +0.6%     
========================================
  Files         618     618             
  Lines       23910   23910             
  Branches     2356    2356             
========================================
+ Hits        18296   18455    +159     
+ Misses       4980    4821    -159     
  Partials      634     634             

Flag	Coverage Δ
integrationtests	65.8% <ø> (+3.2%)	⬆️
unittests	71.7% <ø> (+<0.1%)	⬆️

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

Impacted Files	Coverage Δ
...simcore_service_webserver/projects/projects_api.py	83.0% <0.0%> (-1.9%)	⬇️
..._director_v2/modules/dynamic_sidecar/docker_api.py	86.3% <0.0%> (+0.6%)	⬆️
...simcore_service_director_v2/modules/dask_client.py	90.8% <0.0%> (+0.8%)	⬆️
...e_service_director_v2/models/domains/comp_tasks.py	100.0% <0.0%> (+1.3%)	⬆️
.../src/simcore_service_webserver/director_v2_core.py	69.4% <0.0%> (+1.5%)	⬆️
...-v2/src/simcore_service_director_v2/core/errors.py	76.3% <0.0%> (+1.8%)	⬆️
...c/simcore_service_director_v2/modules/db/events.py	100.0% <0.0%> (+2.8%)	⬆️
...rector_v2/modules/comp_scheduler/dask_scheduler.py	100.0% <0.0%> (+4.7%)	⬆️
.../simcore_service_director_v2/utils/computations.py	91.6% <0.0%> (+5.5%)	⬆️
...mcore_service_director_v2/api/errors/http_error.py	83.3% <0.0%> (+8.3%)	⬆️
... and 9 more