Need to add titiler_endpoint argument when calling cog_tile_vmin_vmax…

… in add_cog_layer (#883)

* Pass titiler_endpoint when running cog_tile_vmin_vmax

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

leafmap/leafmap.py

@@ -1040,7 +1040,9 @@ def add_cog_layer(
         if not hasattr(self, "cog_layer_dict"):
             self.cog_layer_dict = {}
 
-        vmin, vmax = cog_tile_vmin_vmax(url, bands=bands)
+        vmin, vmax = cog_tile_vmin_vmax(
+            url, bands=bands, titiler_endpoint=titiler_endpoint
+        )
 
         if "colormap_name" in kwargs:
             colormap = kwargs["colormap_name"]