Spring-ai docs: remove "1.0-SNAPSHOT" keyword in all OpenAI links

I removed snapshop link in OpenAI TTS link. - before TTS link: https://docs.spring.io/spring-ai/reference/1.0-SNAPSHOT/api/audio/speech/openai-speech.html - after TTS link: https://docs.spring.io/spring-ai/reference/api/audio/speech/openai-speech.html

Additionally, I discovered that other links were also incorrect due to the "1.0-SNAPSHOT" keyword, so I removed the "1.0-SNAPSHOT" term from all the links.

close #1574

Before

After

Comment From: tzolov

Thanks