[8.3.x] fix(@angular-devkit/build-angular): update tree-kill dependency to 1.2.2

[clydin]

While the CLI is not affected by the following advisory, this change will address the audit warning and prevent any potential future usage of the package within the CLI from being affected.
Advisory: https://www.npmjs.com/advisories/1432

Closes #16629

[jplatte]

Why is @ngtools/webpack using an exact version requirement in the first place?

[alan-agius4]

We pin all transitive dependencies to avoid unexpected breakages when a 3rd party library gets a release.

So before updating a dependency we make sure that it doesn't break any of our tests.

[ahmadabulaban]

When the new tag 8.3.23 (that contain this fix) will be available ?

[Nikhilkapoor20]

Any update on this ?

[kolibrizas]

@Nikhilkapoor20 @ahmadabulaban
According to https://www.npmjs.com/package/@angular-devkit/build-angular 0.803.23 was released a few hours ago. With it tree-kill version was updated and now npm audit succeeds.

[angular-automatic-lock-bot]

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