Do not warn about exceeding extent when off by 1px

[mourner]

Closes #8992. A small change to disable "exceeds extent" warnings when the error is off by just 1 pixel, which currently happens on most of our maps on lower zooms because it originates in Mapbox Streets (where geometry is clipped to extent inclusive on the max boundary when it should be exclusive).

1px-off error won't affect rendering, and having this warning appear by default on our maps makes it look like something's wrong when it's not, so I think this small hack is harmless and beneficial enough to be acceptable. We can remove it later, after our tile sources no longer have this issue.

Launch Checklist

• briefly describe the changes in this PR
• write tests for all new functionality
• manually test the debug page
• apply changelog label ('bug', 'feature', 'docs', etc) or use the label 'skip changelog'
• add an entry inside this element for inclusion in the mapbox-gl-js changelog: <changelog>Removed a misleading "geometry exceeds allowed extent" warning when using Mapbox Streets vector tiles.</changelog>

[asheemmamoowala]

We can remove it later, after our tile sources no longer have this issue.

👍