fix: wrong span attribute for prompt logs (#3)

Author: nirga

traceloop-sdk/lib/traceloop/sdk.rb

@@ -32,8 +32,8 @@ def log_prompt(model, system_prompt="", user_prompt)
             OpenTelemetry::SemanticConventionsAi::SpanAttributes::LLM_REQUEST_MODEL => model,
             "#{OpenTelemetry::SemanticConventionsAi::SpanAttributes::LLM_PROMPTS}.0.role" => "system",
             "#{OpenTelemetry::SemanticConventionsAi::SpanAttributes::LLM_PROMPTS}.0.content" => system_prompt,
-            "#{OpenTelemetry::SemanticConventionsAi::SpanAttributes::LLM_PROMPTS}.0.role" => "user",
-            "#{OpenTelemetry::SemanticConventionsAi::SpanAttributes::LLM_PROMPTS}.0.content" => user_prompt
+            "#{OpenTelemetry::SemanticConventionsAi::SpanAttributes::LLM_PROMPTS}.1.role" => "user",
+            "#{OpenTelemetry::SemanticConventionsAi::SpanAttributes::LLM_PROMPTS}.1.content" => user_prompt
           })
         end