📦 Fix expiration checks

Affects memory, postgres and sqlite3 drivers

postgres/postgres.go

@@ -118,7 +118,7 @@ func (s *Storage) Get(key string) ([]byte, error) {
 	}
 
 	// If the expiration time has already passed, then return nil
-	if time.Now().After(time.Unix(exp, 0)) {
+	if exp <= time.Now().Unix() && exp != 0 {
 		return nil, nil
 	}