build: Add port settings to the docker-test recipe

Makefile

@@ -21,8 +21,8 @@ docker-stop:
 	docker ps -aq --filter "name=chhoto-url" | xargs -r docker rm
 
 docker-test: docker-local docker-stop
-	docker run -p 4567:4567 --name chhoto-url -e password="${PASSWORD}" -e public_mode="${PUBLIC_MODE}" \
-		-e site_url="${SITE_URL}" -e db_url="${DB_URL}" -e redirect_method="${REDIRECT_METHOD}" \
+	docker run -p ${PORT}:${PORT} --name chhoto-url -e password="${PASSWORD}" -e public_mode="${PUBLIC_MODE}" \
+		-e site_url="${SITE_URL}" -e db_url="${DB_URL}" -e redirect_method="${REDIRECT_METHOD}" -e port="${PORT}"\
 		-e slug_style="${SLUG_STYLE}" -e slug_length="${SLUG_LENGTH}" -e cache_control_header="${CACHE_CONTROL_HEADER}"\
 		-d chhoto-url
 	docker logs chhoto-url -f