--- re-building ‘fitting-timecourses.Rmd’ using rmarkdown

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Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: actions/checkout@v2, r-lib/actions/setup-r@v1, r-lib/actions/setup-pandoc@v1, actions/cache@v2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

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