fix description for image format

scripts/test

@@ -0,0 +1,17 @@
+#! /usr/bin/env bash
+
+SUBPACKAGE_DIRS=(
+    "core"
+    "xarray"
+    "mosaic"
+    "application"
+    "extensions"
+)
+
+for PACKAGE_DIR in "${SUBPACKAGE_DIRS[@]}"
+do
+    echo "Running tests for titiler-${PACKAGE_DIR}"
+    pushd ./src/titiler/${PACKAGE_DIR}
+    python -m pytest -s
+    popd
+done

src/titiler/core/titiler/core/factory.py

@@ -1364,7 +1364,9 @@ def feature_image(
             geojson: Annotated[Feature, Body(description="GeoJSON Feature.")],
             format: Annotated[
                 ImageType,
-                "Default will be automatically defined if the output image needs a mask (png) or not (jpeg).",
+                Field(
+                    description="Default will be automatically defined if the output image needs a mask (png) or not (jpeg)."
+                ),
             ] = None,
             src_path=Depends(self.path_dependency),
             reader_params=Depends(self.reader_dependency),

src/titiler/mosaic/titiler/mosaic/factory.py

@@ -583,7 +583,9 @@ def tile(
             ] = 1,
             format: Annotated[
                 ImageType,
-                "Default will be automatically defined if the output image needs a mask (png) or not (jpeg).",
+                Field(
+                    description="Default will be automatically defined if the output image needs a mask (png) or not (jpeg).",
+                ),
             ] = None,
             src_path=Depends(self.path_dependency),
             backend_params=Depends(self.backend_dependency),