Update default Anthropic text-generation model (`claude-3-5-sonnet-20240620` -> `claude-3-7-sonnet-20250219`)

The new baibot version (v1.5.0) supports the new Claude Sonnet 3.7
model, which is supposedly improved and priced the same way, so it makes
sense to upgrade to it in our static definitions.

roles/custom/matrix-bot-baibot/defaults/main.yml

@@ -199,7 +199,7 @@ matrix_bot_baibot_config_agents_static_definitions_anthropic_config_api_key: ""
 
 matrix_bot_baibot_config_agents_static_definitions_anthropic_config_text_generation_enabled: true
 # For valid model choices, see: https://platform.anthropic.com/docs/models
-matrix_bot_baibot_config_agents_static_definitions_anthropic_config_text_generation_model_id: claude-3-5-sonnet-20240620
+matrix_bot_baibot_config_agents_static_definitions_anthropic_config_text_generation_model_id: claude-3-7-sonnet-20250219
 # The prompt text to use (can be null or empty to not use a prompt).
 # See: https://huggingface.co/docs/transformers/en/tasks/prompting
 matrix_bot_baibot_config_agents_static_definitions_anthropic_config_text_generation_prompt: "{{ matrix_bot_baibot_config_agents_static_definitions_prompt }}"