Cite Method: biblatex cannot handle underscores in filename of .bib file

Bug description

If you write an article that contains citations and use the biblatex engine instead of the default one (citeproc), Quarto cannot handle underscores in the filename of the .bib file.

Steps to reproduce

Content of documend.qmd:

---
format:
  pdf:
    cite-method: biblatex
    keep-latex: true
bibliography: quarto_references.bib
---

Quarto [@Allaire_Quarto_2024] is really awesome!

Content of quarto_references.bib:

@software{Allaire_Quarto_2024,
        author = {Allaire, J.J. and Teague, Charles and Scheidegger, Carlos and Xie, Yihui and Dervieux, Christophe},
        doi = {10.5281/zenodo.5960048},
        month = feb,
        title = {{Quarto}},
        url = {https://github.com/quarto-dev/quarto-cli},
        version = {1.4},
        year = {2024}
}

Expected behavior

Quarto should render the document to a pdf-file and use biber to create correct citations:

Actual behavior

Quarto apparently runs biber on quarto\_references.bib (notice the backslash), which doesn't exist. This causes biber to fail with an error message:

generating bibliography
  INFO - This is Biber 2.19
  INFO - Logfile is 'document.blg'
  INFO - Reading 'document.bcf'
  INFO - Found 1 citekeys in bib section 0
  INFO - Processing section 0
  INFO - Looking for bibtex file 'quarto\_references.bib' for section 0
  ERROR - Cannot find 'quarto\_references.bib'!
  INFO - ERRORS: 1

Your environment

• OS: Ubuntu 23.10 mantic

Quarto check output

Quarto 1.4.554
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.1.11: OK
      Dart Sass version 1.69.5: OK
      Deno version 1.37.2: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.4.554
      Path: /opt/quarto/bin

[✓] Checking tools....................OK
      TinyTeX: (not installed)
      Chromium: (not installed)

[✓] Checking LaTeX....................OK
      Using: Installation From Path
      Path: /usr/bin
      Version: 2023

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.11.6
      Path: /usr/bin/python3
      Jupyter: 5.3.1
      Kernels: julia-1.10, python3, sagemath

[✓] Checking Jupyter engine render....OK

[✓] Checking R installation...........OK
      Version: 4.3.1
      Path: /usr/lib/R
      LibPaths:
        - /home/marcel/R/x86_64-pc-linux-gnu-library/4.3
        - /usr/local/lib/R/site-library
        - /usr/lib/R/site-library
        - /usr/lib/R/library
      knitr: 1.43
      rmarkdown: 2.23

[✓] Checking Knitr engine render......OK

Start with documend.qmd and quarto_references.bib, then run the reported PDF render using cite-method: biblatex and keep-latex: true. Inspect document.bcf and the biber invocation to trace why the underscore is escaped; done means biber reads quarto_references.bib and the PDF renders with correct citations.