Reduce time delay in ObCrankerApplication execution cycle

The execution interval in ObCrankerApplication.java has been reduced from 60 to 30 seconds. This is intended to increase the efficiency and responsiveness of the application by running the associated tasks more frequently.

src/main/java/markets/arcana/obcranker/ObCrankerApplication.java

@@ -100,6 +100,6 @@ public void crankEventHeapLoop() {
                 log.error("Error caching/cranking markets: {}", ex.getMessage(), ex);
             }
 
-        }, 0, 60, TimeUnit.SECONDS);
+        }, 0, 30, TimeUnit.SECONDS);
     }
 }