chore: upgrade license-checker to 1.13.4 (#270)

Co-authored-by: Zhe Sun <[email protected]>

Author: vaadin-bot

pom.xml

@@ -54,7 +54,7 @@
     <properties>
         <flow.version>24.6-SNAPSHOT</flow.version>
         <hilla.version>24.6-SNAPSHOT</hilla.version>
-        <vaadin.license.checker.version>1.13.2</vaadin.license.checker.version>
+        <vaadin.license.checker.version>1.13.4</vaadin.license.checker.version>
         <spring.boot.version>3.4.2</spring.boot.version>
 
         <maven.compiler.source>17</maven.compiler.source>