Resolve SyntaxWarning for citations #2289
Description
Currently, we get a lot of SyntaxWarnings from the citations.
These are really nothing important, but it would be great to resolve them.
[/Users/au561649/.cache/mteb/results/.venv/lib/python3.12/site-packages/mteb/tasks/Retrieval/dan/DanFeverRetrieval.py:30](https://file+.vscode-resource.vscode-cdn.net/Users/au561649/.cache/mteb/results/.venv/lib/python3.12/site-packages/mteb/tasks/Retrieval/dan/DanFeverRetrieval.py:30): SyntaxWarning: invalid escape sequence '\o'
bibtex_citation="""
[/Users/au561649/.cache/mteb/results/.venv/lib/python3.12/site-packages/mteb/tasks/Retrieval/dan/DanFeverRetrieval.py:133](https://file+.vscode-resource.vscode-cdn.net/Users/au561649/.cache/mteb/results/.venv/lib/python3.12/site-packages/mteb/tasks/Retrieval/dan/DanFeverRetrieval.py:133): SyntaxWarning: invalid escape sequence '\o'
bibtex_citation="""
...