fix(ci): mkdocs build requires fetch-depth: 0 (#18285)

[A. Jard (aHenryJard)]

Proposed changes

• uses fetch-depth: 0 for mkdocs build ci

Because we don't pin mkdoc plugin versions and because of recent release of https://github.com/timvink/mkdocs-git-revision-date-localized-plugin/releases/tag/v1.6.0

Related issues

• closes fix(ci): doc ci is broken #18285

How to test this PR

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant use cases (coverage and e2e)
• I added/updated the relevant documentation (either on GitHub or on Notion)
• Where necessary, I refactored code to improve the overall quality

Further comments

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 41.91%. Comparing base (f57c05b) to head (6a014b0).

❗ There is a different number of reports uploaded between BASE (f57c05b) and HEAD (6a014b0). Click for more details.

HEAD has 4 uploads less than BASE

Flag	BASE (f57c05b)	HEAD (6a014b0)
opencti-graphql	3	2
opencti-client-python	3	0

Additional details and impacted files

@@                 Coverage Diff                 @@
##           lts/7.260309.0   #18311       +/-   ##
===================================================
- Coverage           65.95%   41.91%   -24.04%     
===================================================
  Files                 929      853       -76     
  Lines              101122    89902    -11220     
  Branches             8314     3100     -5214     
===================================================
- Hits                66690    37680    -29010     
- Misses              34432    52222    +17790     

Flag	Coverage Δ
opencti-client-python	?
opencti-graphql	41.91% <ø> (-26.59%)	⬇️

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[A. Jard (aHenryJard)]

Superseeded by #18310 because both fix are needed to have a green CI.