feat(mistral-ai): update model YAMLs [bot] (#916)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

Author: harshiv-26

providers/mistral-ai/labs-leanstral-2603.yaml

@@ -5,14 +5,17 @@ costs:
 features:
     - function_calling
     - structured_output
+    - assistant_prefill
 limits:
     context_window: 196608
 modalities:
     input:
         - image
         - text
+        - code
     output:
         - text
+        - code
 mode: chat
 model: labs-leanstral-2603
 params:

providers/mistral-ai/mistral-vibe-cli-fast.yaml

@@ -1,3 +1,7 @@
+costs:
+    - input_cost_per_token: 1e-7
+      output_cost_per_token: 3e-7
+      region: "*"
 features:
     - function_calling
 limits:
@@ -17,6 +21,7 @@ provisioning: serverless
 sources:
     - https://docs.mistral.ai/mistral-vibe/introduction
     - https://docs.mistral.ai/mistral-vibe/local
+    - https://mistral.ai/news/devstral-2-vibe-cli
 status: active
 supportedModes:
     - chat