Remove VersionedFastAPI + add telemetry to tests

[jotare]

Description

VersionedFastAPI was giving us more trouble than benefit. A simple prefix in our routers replaces the functionality we were using from VersionedFastAPI. In addition, removing this fixes a subtle bug where two FastAPIs were created with the same middleware, causing multiple calls to those middlewares (auth, audit...) per request.

How was this PR tested?

Describe how you tested this PR.

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 27 lines in your changes missing coverage. Please review.

Project coverage is 84.06%. Comparing base (cd5cfda) to head (01049ed).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
...iadb_telemetry/src/nucliadb_telemetry/jetstream.py	50.00%	13 Missing ⚠️
nucliadb/src/nucliadb/train/app.py	0.00%	8 Missing ⚠️
nucliadb/src/nucliadb/search/openapi.py	0.00%	2 Missing ⚠️
nucliadb/src/nucliadb/search/run.py	0.00%	2 Missing ⚠️
nucliadb/src/nucliadb/train/run.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3053      +/-   ##
==========================================
- Coverage   84.19%   84.06%   -0.13%     
==========================================
  Files         502      503       +1     
  Lines       37847    37742     -105     
  Branches    11808    11808              
==========================================
- Hits        31865    31729     -136     
- Misses       5427     5457      +30     
- Partials      555      556       +1     

Flag	Coverage Δ
nidx	78.12% <ø> (-0.01%)	⬇️
nucliadb	76.65% <66.66%> (-0.22%)	⬇️
nucliadb-ingest	41.46% <25.92%> (-0.41%)	⬇️
nucliadb-reader	41.31% <48.14%> (-0.48%)	⬇️
nucliadb-search	44.81% <40.74%> (-0.44%)	⬇️
nucliadb-standalone	45.46% <46.29%> (-0.42%)	⬇️
nucliadb-train	44.15% <44.44%> (-0.41%)	⬇️
nucliadb-writer	46.46% <31.48%> (-0.28%)	⬇️
nucliadb_dataset	55.45% <ø> (ø)
nucliadb_models	79.05% <ø> (ø)
nucliadb_sdk	93.13% <ø> (ø)
nucliadb_telemetry	85.48% <50.00%> (-1.02%)	⬇️
nucliadb_utils	84.86% <100.00%> (-0.06%)	⬇️

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