Docs: update Lambda Node Runtime to use Node 20, 22 or 24. (#433)

Author: blkgrlcto

src/content/docs/aws/services/lambda.mdx

@@ -48,7 +48,7 @@ Enter the following command to create a new Lambda function:
 zip function.zip index.js
 awslocal lambda create-function \
     --function-name localstack-lambda-url-example \
-    --runtime nodejs18.x \
+    --runtime nodejs22.x \
     --zip-file fileb://function.zip \
     --handler index.handler \
     --role arn:aws:iam::000000000000:role/lambda-role
@@ -59,7 +59,7 @@ To create a predictable URL for the function, you can assign a custom ID by spec
 ```bash
 awslocal lambda create-function \
     --function-name localstack-lambda-url-example \
-    --runtime nodejs18.x \
+    --runtime nodejs22.x \
     --zip-file fileb://function.zip \
     --handler index.handler \
     --role arn:aws:iam::000000000000:role/lambda-role \