Ignore .geojson files by default (#17700)

Resolves #17699

GeoJSON files are giant JSON files for geographic data structures and
will never contain Tailwind classes, but because they are often huge
they will slow down the build a lot if scanned.

---------

Co-authored-by: Adam Wathan <4323180+adamwathan@users.noreply.github.com>

Author: adamwathan

CHANGELOG.md

@@ -7,7 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-- Nothing yet!
+### Fixed
+
+- Don't scan `.geojson` files for classes by default ([#17700](https://github.com/tailwindlabs/tailwindcss/pull/17700))
 
 ## [4.1.4] - 2025-04-14
 

crates/oxide/src/scanner/fixtures/binary-extensions.txt

@@ -77,6 +77,7 @@ fpx
 fst
 fvt
 g3
+geojson
 gh
 gif
 graffle