Update dependency tensorflow [SECURITY]

Author: renovate-bot

_UPDATE/Malaria/requirements.txt

@@ -1,7 +1,7 @@
 numpy==1.19.2
 pandas==1.1.2
 h5py==2.10.0
-tensorflow==2.4.1
+tensorflow==2.4.2
 pillow==7.2.0
 Keras==2.2.5
 PIL=8.2.0

_UPDATE/Traffic-Sign-Detection/requirements.txt

@@ -105,7 +105,7 @@ six==1.15.0
 SoundFile==0.10.3.post1
 tensorboard==2.4.1
 tensorboard-plugin-wit==1.7.0
-tensorflow==2.4.1
+tensorflow==2.5.3
 tensorflow-estimator==2.4.0
 tensorflow-gpu==2.4.1
 termcolor==1.1.0