Update versions of python libraries

Author: Alex

Diff for: requirements.txt

@@ -1,11 +1,12 @@
-joblib==0.15.1
+dvc==1.8.4
+joblib==0.17.0
 jupyter==1.0.0
 jupyter_contrib_nbextensions==0.5.1
-ipykernel==5.3.0
-matplotlib==3.1.2
-numpy==1.18.1
-pandas==1.0.0
-pyyaml==5.3
-scikit-learn==0.23.1
-scipy==1.4.1
-tqdm==4.42.0
+ipykernel==5.3.4
+matplotlib==3.3.2
+numpy==1.19.2
+pandas==1.1.3
+pyyaml==5.3.1
+scikit-learn==0.23.2
+scipy==1.5.3
+tqdm==4.50.2