Merge branch 'master' of github.com:viscom-ulm/Net2Vis

Author: Alex

backend/requirements.txt

@@ -51,14 +51,14 @@ six==1.15.0
 structlog==21.1.0
 tensorboard==2.4.1
 tensorboard-plugin-wit==1.8.0
-tensorflow==2.4.1
+tensorflow==2.5.0
 tensorflow-estimator==2.4.0
 termcolor==1.1.0
 tinycss2==1.1.0
 toml==0.10.2
 typed-ast==1.4.2
 typing-extensions==3.7.4.3
-urllib3==1.26.4
+urllib3==1.26.5
 uWSGI==2.0.19.1
 webencodings==0.5.1
 websocket-client==0.58.0