Outdated new PromptTemplate(...) calls in Documentation

[ullenboom]

On the following documentation page:
https://github.com/spring-projects/spring-ai/blob/1.0.x/spring-ai-docs/src/main/antora/modules/ROOT/pages/api/structured-output-converter.adoc the code examples still use the outdated API with direct instantiation via new PromptTemplate(...). This should be updated to use the builder pattern.

[sunyuhan1998]

You're absolutely right — these constructors no longer exist. I've submitted a PR #3717 to fix this issue. Thank you for reporting it!