Pin sktime version to 0.24.2

requirements.txt

@@ -14,7 +14,7 @@ statsmodels>=0.12.0
 ete3>=3.1.0
 networkx>=2.4, !=2.7.*, !=2.8.1, !=2.8.2, !=2.8.3
 scikit_learn>=1.0.0; python_version >= '3.8'
-sktime>=0.16.1
+sktime==0.24.2
 giotto_tda==0.6.0
 ripser==0.6.4