Update dependency org.apache.pdfbox:pdfbox to v3.0.6

Author: renovate[bot]

library/build.gradle

@@ -55,7 +55,7 @@ ext {
     commons_math_version = '3.6.1'
     commons_text_version = '1.8'
     commons_validator_version = '1.8.0'
-    pdfbox_version = '3.0.4'
+    pdfbox_version = '3.0.6'
 
     poi_version = "5.3.0"