Update 'src/main/resources/application.properties'

Added explicit property just to be certain that we don't expose the h2 console to other machines.

src/main/resources/application.properties

@@ -1,7 +1,9 @@
 # ---Comments without preceeding '---' are settings to enable for development
 
 # ---Enable H2 console
-# spring.h2.console.enabled=true
+spring.h2.console.enabled=true
+# ---This defaults to false, but we'll include it considering the latest vulnerability - CVE-2021-42392
+spring.h2.console.settings.web-allow-others=false
 
 # ---Turn Statistics on
 spring.jpa.properties.hibernate.generate_statistics=true