Fix link in about-the-dependency-graph.md

[mtnalonso]

Why:

The link to "Reviewing dependency changes in a pull request" (/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/reviewing-dependency-changes-in-a-pull-request) is pointing to a wrong location (/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/incorporating-feedback-in-your-pull-request).

What's being changed:

Source	Staging	Production	What Changed
content/code-security/supply-chain-security/understanding-your-software-supply-chain/about-the-dependency-graph.md	Modified	Original	Updated link reference

Check off the following:

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• For content changes, I have completed the self-review checklist.

Writer impact (This section is for GitHub staff members only):

• This pull request impacts the contribution experience
  • I have added the 'writer impact' label
  • I have added a description and/or a video demo of the changes below (e.g. a "before and after video")

[welcome]

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[github-actions]

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Content directory changes

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Source	Staging	Production	What Changed
content/code-security/supply-chain-security/understanding-your-software-supply-chain/about-the-dependency-graph.md	Modified	Original

[ramyaparimi]

@mtnalonso
Thanks so much for opening a PR! I'll get this triaged for review ⚡

[mchammer01]

@mtnalonso - thank you for fixing the incorrect link ✨

[github-actions]

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[Ambassadormathismathews]

Reviewing dependency changes in a pull request](/pull