fixed problem that occured with new yaml versions

setup.cfg

@@ -25,10 +25,10 @@ install_requires =
     tgt>=1.4.0
     pandas>=1.4.0
     soundfile>=0.10.0
-    PyYAML>=6.0.0
+    PyYAML==6.0.0
     rich>=13.2.0
     scikit-learn>=1.2.0
-    ruamel.yaml>=0.17.21
+    ruamel.yaml==0.17.21
 # [flake8]
 # max-line-length = 92
 # max-doc-length = 75