Move BLEUBERI environment to community folder

- Moved environments/bleuberi to environments/community/bleuberi
      - Updated .gitmodules to reflect new submodule path
      - Fixed pre-commit formatting issues
      - Cleaned up test output files

environments/bleuberi/configs/openai.yaml

@@ -1,22 +0,0 @@
-env:
-  # Standard environment configuration
-  wandb_name: bleuberi
-  dataset_name: "allenai/tulu-3-sft-mixture"
-  reward_funcs:
-    - "bleu"
-  ref_models:
-    - "gold"
-  # Use a tokenizer that's compatible with OpenAI models
-  tokenizer_name: "gpt2"
-
-server:
-  timeout: 1200
-  num_max_requests_at_once: 8
-  num_requests_for_eval: 16
-  server_type: "openai"
-  model_name: "gpt-4.1-nano"  # Or your preferred model
-  base_url: "https://api.openai.com/v1"  # Or your custom server URL
-  api_key: "${OPENAI_API_KEY}"  # Will be loaded from environment variable
-  temperature: 0.7
-  max_tokens: 1024
-  top_p: 0.95