Update d3 from version 5.9.2 to 6.7.0
1fa8c79b1ef8
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Description

Update d3 from version 5.9.2 to 6.7.0

Summary:
Update the d3 library to its last 6.x version available on https://github.com/d3/d3/releases

This also requires updating the tooltip event handling of dots in Chart.js to avoid an Uncaught TypeError: d3.event is undefined per https://observablehq.com/@d3/d3v6-migration-guide#event-management linked from https://github.com/d3/d3/releases/tag/v6.0.0

Closes T15820

Test Plan:

Enable the Facts application, go to the Reports of a Project with task changes over time, look at charts, hover over data points, read the tooltip - e.g. on http://phorge.localhost/project/reports/1/ or http://phorge.localhost/maniphest/report/burn/
Check HTML source of above URIs for the <script type="text/javascript"> loading d3.min.js and open the JS file to verify the d3 version number bump.
Check Console of web browser's developer tools for no errors.

Reviewers: O1 Blessed Committers, speck

Reviewed By: O1 Blessed Committers, speck

Subscribers: speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno

Maniphest Tasks: T15820