fix: switched sync integration to have redis lock

backend/src/lib/fn/dates.ts

@@ -1,2 +1,8 @@
 export const getLastMidnightDateISO = (last = 1) =>
   `${new Date(new Date().setDate(new Date().getDate() - last)).toISOString().slice(0, 10)}T00:00:00Z`;
+
+export const getTimeDifferenceInSeconds = (lhsTimestamp: string, rhsTimestamp: string) => {
+  const lhs = new Date(lhsTimestamp);
+  const rhs = new Date(rhsTimestamp);
+  return Math.floor((Number(lhs) - Number(rhs)) / 1000);
+};