refactor(platform): Add support for Google vertex AI

- Removes the location from the start of the request url

Author: junaidbinfarooq

src/platform/src/Bridge/VertexAi/Embeddings/ModelClient.php

@@ -40,8 +40,7 @@ public function supports(BaseModel $model): bool
     public function request(BaseModel $model, array|string $payload, array $options = []): RawHttpResult
     {
         $url = \sprintf(
-            'https://%s-aiplatform.googleapis.com/v1/projects/%s/locations/%s/publishers/google/models/%s:%s',
-            $this->location,
+            'https://aiplatform.googleapis.com/v1/projects/%s/locations/%s/publishers/google/models/%s:%s',
             $this->projectId,
             $this->location,
             $model->getName(),

src/platform/src/Bridge/VertexAi/Gemini/ModelClient.php

@@ -39,13 +39,12 @@ public function supports(BaseModel $model): bool
     }
 
     /**
-     * @throws TransportExceptionInterface When the HTTP request fails due to network issues
+     * @throws TransportExceptionInterface
      */
     public function request(BaseModel $model, array|string $payload, array $options = []): RawHttpResult
     {
         $url = \sprintf(
-            'https://%s-aiplatform.googleapis.com/v1/projects/%s/locations/%s/publishers/google/models/%s:%s',
-            $this->location,
+            'https://aiplatform.googleapis.com/v1/projects/%s/locations/%s/publishers/google/models/%s:%s',
             $this->projectId,
             $this->location,
             $model->getName(),

src/platform/tests/Bridge/VertexAi/Gemini/ModelClientTest.php

@@ -52,7 +52,7 @@ public function testItInvokesTheTextModelsSuccessfully()
         $this->assertNotEmpty($info);
         $this->assertSame('POST', $info['http_method']);
         $this->assertSame(
-            'https://global-aiplatform.googleapis.com/v1/projects/test/locations/global/publishers/google/models/gemini-2.0-flash:generateContent',
+            'https://aiplatform.googleapis.com/v1/projects/test/locations/global/publishers/google/models/gemini-2.0-flash:generateContent',
             $info['url'],
         );
         $this->assertSame($expectedResponse, $data);