revert mistaken pdfbox snapshot commit
<!-- some conflict with slf4j with >= 4.12.0
causes failure in testForkParser -->
<pax.exam.version>4.13.1</pax.exam.version>
- <pdfbox.version>2.0.26-SNAPSHOT</pdfbox.version>
+ <pdfbox.version>2.0.25</pdfbox.version>
<!-- NOTE: sync tukaani version with commons-compress in tika-parsers -->
<poi.version>5.2.2</poi.version>
<quartz.version>2.3.2</quartz.version>
