Add AddManifestFilter extension method to UmbracoBuilder.CollectionBuilders.cs

[erikjanwestendorp]

In addition to: #11691 . It would be nice to add a ManifestFilter directly from the Startup.cs class.

[github-actions]

Hi there @erikjanwestendorp, thank you for this contribution! 👍

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[nul800sebastiaan]

Great idea @erikjanwestendorp, thanks for this one! 👍

[nul800sebastiaan]

Cherry picked for 10.4.0 77fdcf2