chore(deps): update dependency tensorflow-probability to v0.20.1

Author: renovate[bot]

requirements.txt

@@ -4,7 +4,7 @@ numpy==1.23.*
 scikit-learn==1.2.*
 matplotlib==3.6.*
 tensorflow==2.12.0
-tensorflow-probability==0.19.0
+tensorflow-probability==0.20.1
 easydict==1.10
 pmlb==1.0.*
 tqdm<5.0