Upgrade to Selenium Htmlunit 2.34.0

Closes gh-16153

Author: wilkinsona

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -170,7 +170,7 @@
 		<rxjava-adapter.version>1.2.1</rxjava-adapter.version>
 		<rxjava2.version>2.2.7</rxjava2.version>
 		<selenium.version>3.141.59</selenium.version>
-		<selenium-htmlunit.version>2.33.3</selenium-htmlunit.version>
+		<selenium-htmlunit.version>2.34.0</selenium-htmlunit.version>
 		<sendgrid.version>4.3.0</sendgrid.version>
 		<servlet-api.version>4.0.1</servlet-api.version>
 		<slf4j.version>1.7.26</slf4j.version>