relax deps for tgi (#626)

Author: NathanHB

pyproject.toml

@@ -82,7 +82,7 @@ dependencies = [
 
 [project.optional-dependencies]
 litellm = ["litellm", "diskcache"]
-tgi = ["text-generation==0.6.0"]
+tgi = ["text-generation>=0.6.0"]
 optimum = ["optimum==1.12.0"]
 quantization = ["bitsandbytes>=0.41.0", "auto-gptq>=0.4.2"]
 adapters = ["peft==0.3.0"]