fix(raster): temp downgrade rio tiler version (#248)

Temporary rollback rio-tiler to an earlier version

Author: anayeaye

raster_api/runtime/setup.py

@@ -14,6 +14,7 @@
     "starlette-cramjam>=0.3,<0.4",
     "aws_xray_sdk>=2.6.0,<3",
     "aws-lambda-powertools>=1.18.0",
+    "rio-tiler==6.2.3",
 ]
 
 extra_reqs = {