Bump core.version from 4.5.4 to 4.5.7 (#8)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -18,7 +18,7 @@
   <description>Another Bedrock Forms Addon</description>
 
   <properties>
-    <core.version>4.5.4</core.version>
+    <core.version>4.5.7</core.version>
     <project.mainClass>me.hsgamer.bettergui.betterforms.BetterForms</project.mainClass>
     <license.packageName>me.hsgamer.bettergui.betterforms.license</license.packageName>
   </properties>