fix typo

pyproject.toml

@@ -12,13 +12,12 @@ affine = ">=2.4.0"
 dask = ">=2024.5.2"
 dask-geopandas = ">=0.3.1"
 duckdb = ">=1.0.0"
-mercantile = "=>1.2.1"
+mercantile = ">=1.2.1"
 numpy  = ">=1.22"
-pyarrow = "=>16.1.0"
+pyarrow = ">=16.1.0"
 pyproj = ">=3.3"
 pystac = ">=1.10.1"
 python-dotenv = ">=1.0.1"
-rasterio = ">=1.3.10"
 rasterio = ">=1.3"
 rioxarray = ">=0.15.6"
 shapely = ">=2.0.0"