Added to Vertex AI Provider gemini 2.5 Pro Preview (#2384)

* Added Gemini 2.5 Pro model to Vertex AI Provider

* Adds Gemini 2.5 Pro preview model

Adds configuration for the new Gemini 2.5 Pro preview model,
including its token limits, context window size, image support, and
pricing information.

src/shared/api.ts

@@ -482,6 +482,14 @@ export const vertexModels = {
 		inputPrice: 0.15,
 		outputPrice: 0.6,
 	},
+	"gemini-2.5-pro-preview-03-25": {
+		maxTokens: 65_535,
+		contextWindow: 1_048_576,
+		supportsImages: true,
+		supportsPromptCache: false,
+		inputPrice: 2.5,
+		outputPrice: 15,
+	},
 	"gemini-2.5-pro-exp-03-25": {
 		maxTokens: 65_535,
 		contextWindow: 1_048_576,