Fix many GitHub issues (#12655)

...-index-core/llama_index/core/node_parser/text/sentence.py

...x-core/llama_index/core/response_synthesizers/__init__.py

...lama_index/core/response_synthesizers/simple_summarize.py

...llama-index-llms-openllm/llama_index/llms/openllm/base.py

...integrations/llms/llama-index-llms-openllm/pyproject.toml

...lms/llama-index-multi-modal-llms-anthropic/pyproject.toml

...-index-readers-file/llama_index/readers/file/docs/base.py

...egrations/readers/llama-index-readers-file/pyproject.toml

...metadata/llama_index/packs/llama_dataset_metadata/base.py

...s/llama-index-packs-llama-dataset-metadata/pyproject.toml