Handle multiple matching ingresses for output-url (#35)

Github actions cannot support having multiple output urls for an environment. Switch the strategy to use `jq`'s `first` function so that at least some valid URL is displayed if present. Punts on how to determine which URL would be preferred in the case of multiple.

entrypoint.sh

@@ -51,7 +51,7 @@ if [[ "${OPERATION}" == "deploy" ]]; then
 	RELEASES=$(helmfile ${BASIC_ARGS} ${EXTRA_VALUES_ARGS} ${DEBUG_ARGS} list --output json | jq .[].name -r)
 	for RELEASE in ${RELEASES}
   do
-	ENTRYPOINT=$(kubectl --namespace ${NAMESPACE} get -l ${RELEASE_LABEL_NAME}=${RELEASE} ingress --output=jsonpath='{.items[*].metadata.annotations.outputs\.webapp-url}')
+	ENTRYPOINT=$(kubectl --namespace ${NAMESPACE} get -l ${RELEASE_LABEL_NAME}=${RELEASE} ingress -o json | jq --raw-output '[.items[].metadata.annotations["outputs.webapp-url"]] | first')
 		if [[ "${ENTRYPOINT}" != "" ]]; then
 			echo "webapp-url=${ENTRYPOINT}" >> $GITHUB_OUTPUT
   	fi