chore(deps): bump org.htmlunit:htmlunit from 4.21.0 to 5.1.0

Bumps [org.htmlunit:htmlunit](https://github.com/HtmlUnit/htmlunit) from 4.21.0 to 5.1.0.
- [Release notes](https://github.com/HtmlUnit/htmlunit/releases)
- [Commits](HtmlUnit/htmlunit@4.21.0...5.1.0)

---
updated-dependencies:
- dependency-name: org.htmlunit:htmlunit
  dependency-version: 5.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pom.xml

@@ -121,7 +121,7 @@
         <spring-boot.version>2.7.18</spring-boot.version>
         <guice.version>4.2.3</guice.version>
         <jaxrs.api.version>2.1.6</jaxrs.api.version>
-        <htmlunit.version>4.21.0</htmlunit.version>
+        <htmlunit.version>5.1.0</htmlunit.version>
         <bouncycastle.version>1.84</bouncycastle.version>
 
         <!-- Test 3rd-party dependencies: -->