Fix broken links to Selenium documentation

The links to docs.seleniumhq.org no longer resolve, since the host was
retired.

This commit changes those links to use the current Selenium
documentation at selenium.dev.

Closes gh-36875

Signed-off-by: leestana01 <leestana01@naver.com>

Author: leestana01

framework-docs/modules/ROOT/pages/testing/mockmvc/htmlunit/webdriver.adoc

@@ -3,7 +3,7 @@
 
 In the previous sections, we have seen how to use MockMvc in conjunction with the raw
 HtmlUnit APIs. In this section, we use additional abstractions within the Selenium
-https://docs.seleniumhq.org/projects/webdriver/[WebDriver] to make things even easier.
+https://www.selenium.dev/documentation/webdriver/[WebDriver] to make things even easier.
 
 [[mockmvc-server-htmlunit-webdriver-why]]
 == Why WebDriver and MockMvc?
@@ -12,7 +12,7 @@ We can already use HtmlUnit and MockMvc, so why would we want to use WebDriver?
 Selenium WebDriver provides a very elegant API that lets us easily organize our code. To
 better show how it works, we explore an example in this section.
 
-NOTE: Despite being a part of https://docs.seleniumhq.org/[Selenium], WebDriver does not
+NOTE: Despite being a part of https://www.selenium.dev/documentation/[Selenium], WebDriver does not
 require a Selenium Server to run your tests.
 
 Suppose we need to ensure that a message is created properly. The tests involve finding