[DOC] Update existing maintaining dependencies doc

[zurex]

Fixes

This is the first in a series of fixes for this issue #2678 .

Changes

• Add section how to update git submodule
• Add section how to update bazel dependency
• Remove similar part in existing part.

[netlify]

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[zurex]

@marcalff would you mind take a look and help me to review this?

[marcalff]

Thanks for looking at the doc.

Please fix various CI failures (format, spelling, markdown).

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.83%. Comparing base (6d87bd6) to head (3d0aa23).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3195   +/-   ##
=======================================
  Coverage   87.83%   87.83%           
=======================================
  Files         195      195           
  Lines        6154     6154           
=======================================
  Hits         5405     5405           
  Misses        749      749           

[marcalff]

LGTM, thanks for the cleanup.