Changed token book_id typing from str to int.

packages/python/src/snip/api/__init__.py

packages/python/src/snip/api/exceptions.py

packages/python/src/snip/api/request.py

packages/python/src/snip/api/schemas.py

packages/python/src/snip/api/snippets.py

packages/python/src/snip/api/token.py

packages/python/src/snip/logger.py

packages/python/src/snip/snippets/base.py

packages/python/src/snip/snippets/factory.py

packages/python/src/snip/token/__init__.py

packages/python/src/snip/token/__main__.py

packages/python/src/snip/token/storage/file_store.py

packages/python/src/snip/token/token.py

packages/python/tests/conftest.py

packages/python/tests/test_api.py

packages/python/tests/test_storage.py