Bump pdfbox from 2.0.19 to 2.0.24 in /dataset-service (#11)

Bumps pdfbox from 2.0.19 to 2.0.24.

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

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Author: dependabot[bot]

dataset-service/pom.xml

@@ -65,7 +65,7 @@
 		<dependency>
 			<groupId>org.apache.pdfbox</groupId>
 			<artifactId>pdfbox</artifactId>
-			<version>2.0.19</version>
+			<version>2.0.24</version>
 		</dependency>
 		<dependency>
 			<groupId>commons-logging</groupId>