feat: Change Voice API note to mention Enterprise instead of Pro subscription

We had a customer who bought API PRO only because they expected Voice to already be there - with that change we should be able to avoid it.

Author: sj-dl

api-reference/voice.mdx

@@ -8,9 +8,9 @@ public: true
 The Voice API provides real-time voice transcription and translation services using a WebSocket connection.
 
 <Info>
-  DeepL API for speech to text is now **available on request** for customers with a DeepL API Pro subscription via the v3 API endpoint. The supported scope of DeepL API for the speech to text functionality is covered in this documentation page.
+  DeepL API for speech to text is now **available on request** for customers with a DeepL API Enterprise subscription via the v3 API endpoint. The supported scope of DeepL API for the speech to text functionality is covered in this documentation page.
 
-  Please note that the existing provisions applying to customers' DeepL API Pro subscription also apply to DeepL API for speech to text with the following applicable additions to the [Terms and Conditions, the Service Specification and the Data Processing Agreement](/api-reference/voice/deepl-voice-api-service-specification-updates) (as a new sub-processor has been added to serve specific languages for the API for speech to text).
+  Please note that the existing provisions applying to customers' DeepL API Enterprise subscription also apply to DeepL API for speech to text with the following applicable additions to the [Terms and Conditions, the Service Specification and the Data Processing Agreement](/api-reference/voice/deepl-voice-api-service-specification-updates) (as a new sub-processor has been added to serve specific languages for the API for speech to text).
 </Info>
 
 ## Overview