Bump org.apache.opennlp:opennlp-tools in /scala/dllib (#5242)

Bumps [org.apache.opennlp:opennlp-tools](https://github.com/apache/opennlp) from 1.8.2 to 2.5.9.
- [Release notes](https://github.com/apache/opennlp/releases)
- [Commits](apache/opennlp@opennlp-1.8.2...opennlp-2.5.9)

---
updated-dependencies:
- dependency-name: org.apache.opennlp:opennlp-tools
  dependency-version: 2.5.9
  dependency-type: direct:production
...

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scala/dllib/pom.xml

@@ -25,7 +25,7 @@
         <dependency>
             <groupId>org.apache.opennlp</groupId>
             <artifactId>opennlp-tools</artifactId>
-            <version>1.8.2</version>
+            <version>2.5.9</version>
         </dependency>
         <dependency>
             <groupId>com.twelvemonkeys.imageio</groupId>