Add new model to integration tests

Signed-off-by: Arthur Heymans <[email protected]>

Author: ArthurHeymans

integration-test/integration/initialize_test.clj

@@ -30,6 +30,7 @@
                 "github-copilot/grok-code-fast-1"
                 "google/gemini-2.0-flash"
                 "google/gemini-2.5-pro"
+                "google/gemini-3-pro-preview"
                 "openai/gpt-4.1"
                 "openai/gpt-5"
                 "openai/gpt-5-codex"
@@ -94,6 +95,7 @@
                 "github-copilot/grok-code-fast-1"
                 "google/gemini-2.0-flash"
                 "google/gemini-2.5-pro"
+                "google/gemini-3-pro-preview"
                 "my-custom/bar2"
                 "my-custom/foo1"
                 "openai/gpt-4.1"