FIX: No tensorflow in docs environment. This should fix the issues with building the examples.

[rcjackson]

The examples were not building due to missing tensorflow libraries. Since tensorflow is not needed for these examples, it has been removed from the doc build environment.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.85%. Comparing base (b928377) to head (43ec37a).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #152   +/-   ##
=======================================
  Coverage   68.85%   68.85%           
=======================================
  Files          32       32           
  Lines        5141     5141           
=======================================
  Hits         3540     3540           
  Misses       1601     1601           

Flag	Coverage Δ
unittests	68.85% <ø> (ø)

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