upgrade pygeoapi version to stable 0.16.1

Author: justb4

services/pygeoapi/env.sh

@@ -12,7 +12,7 @@ export SERVICE_PATH_ADR="/${SERVICE_NAME_ADR}"
 
 # Can be usually left as is, unless you want to run specific build and/or version.
 export DOCKER_IMAGE_NAME="geopython/pygeoapi"
-export DOCKER_IMAGE_VERSION="latest"
+export DOCKER_IMAGE_VERSION="0.16.1"
 # export DOCKER_IMAGE_VERSION="dev"
 export DOCKER_IMAGE="${DOCKER_IMAGE_NAME}:${DOCKER_IMAGE_VERSION}"