Update .gitpod.Dockerfile

Author: tommygonzaleza

.gitpod.Dockerfile

@@ -3,5 +3,5 @@ FROM gitpod/workspace-full:latest
 USER gitpod
 
 RUN pip3 install pytest==4.4.2 pytest-testdox mock
-RUN npm i learnpack@0.1.17 -g && learnpack plugins:install learnpack-python@0.0.35
+RUN npm i learnpack@0.1.19 -g && learnpack plugins:install learnpack-python@0.0.35