Explicitly check the error received via curl when checking for fields quota

[pmalek-sumo]

Let's add checks for the errors that we get when checking for fields quota

sumologic-kubernetes-collection/deploy/helm/sumologic/conf/setup/setup.sh

Lines 25 to 42 in e504b3a

	function remaining_fields() {
	local RESPONSE="$(curl -XGET -s \
	-u "${SUMOLOGIC_ACCESSID}:${SUMOLOGIC_ACCESSKEY}" \
	"${SUMOLOGIC_BASE_URL}"v1/fields/quota)"
	echo "${RESPONSE}" | jq '.remaining'
	}
	# Check if we'd have at least 10 fields remaining after additional fields
	# would be created for the collection
	function should_create_fields() {
	local REMAINING=$(remaining_fields)
	if [[ $(( REMAINING - {{ len .Values.sumologic.logs.fields }} )) -ge 10 ]] ; then
	return 0
	else
	return 1
	fi
	}