fix: tensorflow dependencies in examples (#908)

Author: inimaz

examples/requirements-examples.txt

@@ -1,5 +1,5 @@
 torch>1.13.0  # PyTorch vulnerable to arbitrary code execution, see https://github.com/mlco2/codecarbon/security/dependabot/1
-tensorflow
+tensorflow>2.19.0 
 keras-tuner
 torchvision
 sklearn