Feature/add zarr reader (#816)

* add Zarr Experimental reader

* update deps

* switch to obstore

* add back options and test s3

* update requirements

* update changelog

Author: vincentsarago

CHANGES.md

@@ -91,6 +91,8 @@ with Reader("tests/fixtures/cog_tags.tif") as src:
 
 * add `nodata`, `scales` and `offsets` attributes to `ImageData` and `PointData` classes
 
+* add `rio_tiler.experimental.zarr.ZarrReader` Zarr Dataset experimental reader
+
 # 7.8.1 (2025-06-16)
 
 * apply scale/offset to dataset statistics in ImageData object (used for automatic rescaling)

pyproject.toml

@@ -46,6 +46,8 @@ test = [
     "morecantile>=6.0,<7.0",
     # Experimental
     "vsifile>=0.2",
+    "zarr~=3.0",
+    "obstore",
 ]
 
 benchmark = [
@@ -69,6 +71,10 @@ xarray = [
     "xarray",
     "rioxarray",
 ]
+zarr = [
+    "zarr~=3.0",
+    "obstore",
+]
 docs = [
     "mkdocs>=1.4.3",
     "mkdocs-jupyter>=0.24.5",
@@ -189,3 +195,9 @@ tag_name = "{new_version}"
 filename = "rio_tiler/__init__.py"
 search = '__version__ = "{current_version}"'
 replace = '__version__ = "{new_version}"'
+
+
+[tool.pytest.ini_options]
+filterwarnings = [
+    "ignore::rio_tiler.errors.RioTilerExperimentalWarning",
+]