Processing v2 integration

[vangheem]

Description

Support for v2 of the processing api enabled by using processing_v2 env var.

Right now, only activate by specifying the

How was this PR tested?

Describe how you tested this PR.

[codecov]

Codecov Report

Attention: 28 lines in your changes are missing coverage. Please review.

Comparison is base (c3f6c03) 82.20% compared to head (46290ae) 82.11%.
Report is 2 commits behind head on main.

Files	Patch %	Lines
...ucliadb/nucliadb/common/http_clients/processing.py	34.37%	21 Missing ⚠️
nucliadb/nucliadb/reader/api/v1/services.py	55.55%	4 Missing ⚠️
nucliadb/nucliadb/writer/api/v1/field.py	88.23%	2 Missing ⚠️
nucliadb/nucliadb/writer/api/v1/upload.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1719      +/-   ##
==========================================
- Coverage   82.20%   82.11%   -0.09%     
==========================================
  Files         336      336              
  Lines       19609    19662      +53     
==========================================
+ Hits        16119    16146      +27     
- Misses       3490     3516      +26     

Flag	Coverage Δ
ingest	69.07% <100.00%> (+0.02%)	⬆️
nucliadb	70.26% <54.79%> (-0.09%)	⬇️
reader	79.05% <55.55%> (-0.36%)	⬇️
sdk	40.58% <ø> (ø)
search	79.04% <ø> (ø)
standalone	88.29% <ø> (ø)
train	63.71% <ø> (ø)
utils	81.42% <100.00%> (+0.17%)	⬆️
writer	85.15% <86.95%> (+<0.01%)	⬆️

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[lferran]

Approved with some comments"