Update dependency org.apache.pdfbox:pdfbox to v2.0.31

Author: renovate[bot]

weatherbackend/pom.xml

@@ -17,7 +17,7 @@
 		<rest-assured.version>4.5.1</rest-assured.version>
 		<springdoc-openapi.version>1.8.0</springdoc-openapi.version>
 		<commons-io.version>2.15.1</commons-io.version>
-		<pdfbox.version>2.0.30</pdfbox.version>
+		<pdfbox.version>2.0.31</pdfbox.version>
 	</properties>
 
 	<dependencies>