fix(infra): Downgrade ipycanvas widget

Canvas widget creation failing on SageMaker Studio environments with
error seemingly similar to the below GitHub issue. Downgraded
ipycanvas (which will also need to be reflected in notebooks).

https://github.com/martinRenou/ipycanvas/issues/295

Author: athewsey

.infrastructure/template.sam.yaml

@@ -176,7 +176,7 @@ Resources:
               pip install \
                 jupyter-server==$JUPYTERSERVER_VER \
                 ipywidgets==$IPYWIDGETS_VER \
-                ipycanvas
+                'ipycanvas<0.13'
               source /home/ec2-user/anaconda3/bin/deactivate
               EOF
 
@@ -379,7 +379,7 @@ Resources:
               boto3==$BOTO3_VER \
               botocore==$BOTOCORE_VER \
               jupyter-server==$JUPYTERSERVER_VER \
-              ipycanvas
+              'ipycanvas<0.13'
           jlpm add --dev bash-language-server dockerfile-language-server-nodejs
 
           CMP_CONFIG_DIR=.jupyter/lab/user-settings/@krassowski/jupyterlab-lsp/

.simple.cf.yaml

@@ -39,7 +39,7 @@ Resources:
               pip install \
                 jupyter-server==$JUPYTERSERVER_VER \
                 ipywidgets==$IPYWIDGETS_VER \
-                ipycanvas
+                'ipycanvas<0.13'
               source /home/ec2-user/anaconda3/bin/deactivate
               EOF