chore(deps): update dependency marked to v15.0.7

Author: renovate[bot]

slides/index.html

@@ -28,7 +28,7 @@
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+    <script src="https://cdnjs.cloudflare.com/ajax/libs/marked/15.0.7/marked.min.js" integrity="sha512-rPuOZPx/WHMHNx2RoALKwiCDiDrCo4ekUctyTYKzBo8NGA79NcTW2gfrbcCL2RYL7RdjX2v9zR0fKyI4U4kPew==" crossorigin="anonymous" referrerpolicy="no-referrer"></script>
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