Merge pull request #598 from PyThaiNLP/dependabot/pip/tensorflow-2.4.2

Bump tensorflow from 2.4.0 to 2.4.2

Author: wannaphong

docker_requirements.txt

@@ -23,5 +23,5 @@ fairseq==0.10.2
 pyicu==2.6
 deepcut==0.7.0.0
 h5py==2.10.0
-tensorflow==2.4.0
+tensorflow==2.4.2
 pandas==0.24