Resource head endpoint

[lferran]

Description

Describe the proposed changes made in this PR.

How was this PR tested?

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[codecov[bot]]

Codecov Report

:x: Patch coverage is 95.45455% with 1 line in your changes missing coverage. Please review. :white_check_mark: Project coverage is 85.90%. Comparing base (c7e794d) to head (06d0137). :warning: Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
nucliadb/src/nucliadb/reader/api/v1/resource.py	95.45%	1 Missing :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3441   +/-   ##
=======================================
  Coverage   85.89%   85.90%           
=======================================
  Files         549      549           
  Lines       45880    45901   +21     
  Branches    12677    12677           
=======================================
+ Hits        39410    39430   +20     
- Misses       5851     5852    +1     
  Partials      619      619           

Flag	Coverage Δ
nidx	79.54% <ø> (ø)
nucliadb	75.13% <50.00%> (-0.03%)	:arrow_down:
nucliadb-ingest	42.96% <50.00%> (+<0.01%)	:arrow_up:
nucliadb-reader	43.10% <95.45%> (+0.04%)	:arrow_up:
nucliadb-search	55.07% <50.00%> (-0.01%)	:arrow_down:
nucliadb-standalone	45.34% <50.00%> (+<0.01%)	:arrow_up:
nucliadb-train	44.03% <50.00%> (+<0.01%)	:arrow_up:
nucliadb-writer	46.16% <50.00%> (+<0.01%)	:arrow_up:
nucliadb_dataset	70.79% <ø> (ø)
nucliadb_models	74.72% <ø> (ø)
nucliadb_sdk	80.08% <ø> (ø)
nucliadb_telemetry	82.92% <ø> (ø)
nucliadb_utils	81.64% <ø> (ø)

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