Add support for JSON-RPC plugin uploads

[komima]

Fix for issue #265

[komima]

It seems the devweb container failed to start in the test workflow, I'll investigate more with local containers.

[komima]

celery/celery#7783 (comment)

New version of importlib_metadata was causing the worker to fail on start, and devweb depending on it failing to start (hanging) as well, it seems pinning the version in the docker REQUIREMENTS.txt works.

[dimasciput]

@komima Thanks for fixing the testing workflow!

The changes looks good, let me merge and deploy it tomorrow.

[codecov-commenter]

Codecov Report

Base: 37.72% // Head: 74.15% // Increases project coverage by +36.43% 🎉

Coverage data is based on head (c5cec6d) compared to base (907eaaf).
Patch coverage: 69.11% of modified lines in pull request are covered.

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #266       +/-   ##
===========================================
+ Coverage   37.72%   74.15%   +36.43%     
===========================================
  Files          88      123       +35     
  Lines        3714     4689      +975     
===========================================
+ Hits         1401     3477     +2076     
+ Misses       2313     1212     -1101     

Impacted Files	Coverage Δ
qgis-app/base/license.py	91.66% <0.00%> (+66.66%)	⬆️
...rations/0003_rename_Review_model_and_file_field.py	100.00% <ø> (ø)
qgis-app/plugins/templatetags/range_filter.py	50.00% <0.00%> (ø)
qgis-app/plugins/tests/__init__.py	100.00% <ø> (ø)
...-app/styles/migrations/0003_stylereview_comment.py	100.00% <ø> (ø)
...s-app/styles/migrations/0004_auto_20201108_0742.py	100.00% <ø> (ø)
...-app/styles/migrations/0005_style_modified_date.py	100.00% <ø> (ø)
...yles/migrations/0006_stylereview_require_action.py	100.00% <ø> (ø)
...s-app/styles/migrations/0007_auto_20201109_0112.py	100.00% <ø> (ø)
qgis-app/styles/templatetags/styles_custom_tags.py	21.05% <0.00%> (ø)
... and 173 more

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[dimasciput]

hi @komima, this has been deployed to plugins.qgis.org

[komima]

@dimasciput the update worked great last week for plugin upload in our CI pipeline, but now it seems the deployment has been rolled back to a previous version without this fix, do you know why that might happen?

[dimasciput]

@komima can you give it another try?