Bump pdfbox from 2.0.15 to 2.0.24

Bumps pdfbox from 2.0.15 to 2.0.24.

---
updated-dependencies:
- dependency-name: org.apache.pdfbox:pdfbox
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -82,7 +82,7 @@
       <dependency>
       <groupId>org.apache.pdfbox</groupId>
       <artifactId>pdfbox</artifactId>
-      <version>2.0.15</version>
+      <version>2.0.24</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>