Update binder to JupyterLab 3

Author: datakurre

binder/environment.yml

@@ -7,7 +7,7 @@ channels:
 dependencies:
   - opencv
   - python >=3.6,<3.9.0a0
-  - jupyterlab >=2.1.1,<2.2
+  - jupyterlab >=3.2.9,<3.3
   - nodejs >=14,<15
   - geckodriver >=0.26.0,<0.27.0
   - pip
@@ -17,11 +17,12 @@ dependencies:
     - requests==2.22.0
     - RESTinstance==1.0.2
     - rise==5.6.1
-    - robotframework==4.0.1
+    - robotframework==5.0
     - robotframework-faker==5.0.0
     - robotframework-seleniumlibrary==5.1.3
     - robotframework-seleniumscreenshots==0.9.5
     - selenium==3.141.0
     - urllib3==1.25.3
-    - jupyter-starters==0.3.0a0
+    - jupyter-starters==1.1.0
+    - jupyterlab-widgets==1.0.2
     - jupyterlab-robotmode

binder/postBuild

@@ -4,10 +4,6 @@ pip install -e . -vv
 python -m robotkernel.install --sys-prefix
 jupyter serverextension enable --sys-prefix --py jupyter_starters
 
-jupyter labextension install --no-build \
-    @deathbeds/jupyterlab-starters@0.3.0-a0 \
-    @jupyter-widgets/jupyterlab-manager
-
 jupyter lab build --minimize=False --debug
 
 jupyter labextension list