Release 0.2.0

What's Changed

• Add version in header response via middleware by @stefanorosanelli in #79
• Add support for Ollama and Cohere and any other LangChain supported model by @stefanorosanelli in #77
• Introduce refine text analysis task and service by @stefanorosanelli in #80

Full Changelog: v0.1.0...v0.2.0