Bumped version

Author: rcastley

workshop/aws/ec2/templates/userdata.yaml

@@ -175,7 +175,7 @@ runcmd:
   - curl -S -OL https://github.com/derailed/k9s/releases/download/v0.27.0/k9s_Linux_amd64.tar.gz
   - tar xfz k9s_Linux_amd64.tar.gz -C /usr/local/bin/ k9s
   # Download Workshop
-  - export WSVERSION=4.72
+  - export WSVERSION=4.73
   - 'export WSARCHIVE=$([ "$WSVERSION" = "main" ] && echo "main" || echo "v$WSVERSION")'
   - curl -s -OL https://github.com/splunk/observability-workshop/archive/$WSARCHIVE.zip
   - unzip -qq $WSARCHIVE.zip -d /home/ubuntu/