How could I replace XML with a linebreak using the Javascript Excel API

I have a spreadsheet that has multiple cells containing XML formatting that I want to remove. The problem is that I can't just remove a linebreak since it ruins the formatting of the text. How can I replace the <br /> with a linebreak?

function run() {
  return Excel.run(function(context) {
    const sheet1 = context.workbook.worksheets.getItem("Sheet1");
    const sheet2 = context.workbook.worksheets.getItem("Sheet2");
    const sourceCell = sheet1.getCell(1,1).load("text") 
    const destinationCell = sheet2.getCell(1,1)

    return context.sync().then(function() {
      destinationCell.values = sourceCell.text
    })
  })
}

Let's say my sourceCell contains the following text:

[["08:00 - 08:30 brushing teeth<br />08:30 - 09:00 eating breakfast<br />09:00 - 09:30 ride the bus"]]

How would I go about replacing the <br />with a linebreak in the destination cell?