fix integration tests

Author: Jakub Zika

integration-test/integration/initialize_test.clj

@@ -18,6 +18,7 @@
                    "anthropic/claude-opus-4-20250514"
                    "anthropic/claude-sonnet-4-20250514"
                    "github-copilot/claude-sonnet-4"
+                   "github-copilot/gemini-2.5-pro"
                    "github-copilot/gpt-4.1"
                    "github-copilot/gpt-5"
                    "github-copilot/gpt-5-mini"
@@ -63,6 +64,7 @@
                    "anthropic/claude-opus-4-20250514"
                    "anthropic/claude-sonnet-4-20250514"
                    "github-copilot/claude-sonnet-4"
+                   "github-copilot/gemini-2.5-pro"
                    "github-copilot/gpt-4.1"
                    "github-copilot/gpt-5"
                    "github-copilot/gpt-5-mini"