Use node22 for all examples for function builder

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <[email protected]>

Author: alexellis

docs/openfaas-pro/builder.md

@@ -74,11 +74,11 @@ export PAYLOAD=$(kubectl get secret -n openfaas payload-secret -o jsonpath='{.da
 echo $PAYLOAD > $HOME/.openfaas/payload.txt
 ```
 
-Create a test function using the `python3-http` template, and set it to publish to `ttl.sh`, an ephemeral registry that doesn't require authentication:
+Create a test function using the `node22` template, and set it to publish to `ttl.sh`, an ephemeral registry that doesn't require authentication:
 
 ```bash
 faas-cli new --prefix ttl.sh/test-images \
-    --lang python3-http py-fn
+    --lang node22 py-fn
 ```
 
 Now, publish an image using the remote builder: