Fix sudachipy version

Muennighoff · Muennighoff · commit 4235030166b3 · 2022-07-25T15:14:44.000+02:00
diff --git a/code-env/python/spec/requirements.txt b/code-env/python/spec/requirements.txt
@@ -12,3 +12,5 @@ wordcloud==1.8.0
 fonttools==4.14.0
 pathvalidate==2.3.0
 fastcore==1.3.19
+sudachipy==0.6.0; python_version == '3.6'
+
