Bump org.htmlunit:htmlunit from 4.4.0 to 4.9.0

Bumps [org.htmlunit:htmlunit](https://github.com/HtmlUnit/htmlunit) from 4.4.0 to 4.9.0.
- [Release notes](https://github.com/HtmlUnit/htmlunit/releases)
- [Commits](HtmlUnit/htmlunit@4.4.0...4.9.0)

---
updated-dependencies:
- dependency-name: org.htmlunit:htmlunit
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -182,7 +182,7 @@
       <dependency>
         <groupId>org.htmlunit</groupId>
         <artifactId>htmlunit</artifactId>
-        <version>4.4.0</version>
+        <version>4.9.0</version>
       </dependency>
       <dependency>
         <!-- used in the unit tests and maven-shared-utils:3.3.4 -->