chore(deps): bump org.apache.pdfbox:pdfbox from 3.0.3 to 3.0.6 (#288)

Bumps org.apache.pdfbox:pdfbox from 3.0.3 to 3.0.6.


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agentscope-dependencies-bom/pom.xml

@@ -182,7 +182,7 @@
             <dependency>
                 <groupId>org.apache.pdfbox</groupId>
                 <artifactId>pdfbox</artifactId>
-                <version>3.0.3</version>
+                <version>3.0.6</version>
             </dependency>
 
             <!-- Apache POI for Word document processing -->