Upgrade to Selenium 3.6.0

Closes gh-10491

Author: wilkinsona

spring-boot-dependencies/pom.xml

@@ -155,7 +155,7 @@
 		<rxjava.version>1.3.2</rxjava.version>
 		<rxjava-adapter.version>1.2.1</rxjava-adapter.version>
 		<rxjava2.version>2.1.4</rxjava2.version>
-		<selenium.version>3.5.3</selenium.version>
+		<selenium.version>3.6.0</selenium.version>
 		<selenium-htmlunit.version>2.27</selenium-htmlunit.version>
 		<sendgrid.version>4.1.0</sendgrid.version>
 		<servlet-api.version>3.1.0</servlet-api.version>