Freemarker JspTagLibs support breaks under EE11

Describe the bug

The Spring Security JSP taglib, used in Freemarker templates, breaks under EE11.

To Reproduce

Create a Freemarker template using the taglib, eg:

<#assign security=JspTaglibs["http://www.springframework.org/security/tags"] />
<sec:authorize access="isAuthenticated()">
Logged in
</sec:authorize>

Visiting the page results in a stack trace similar to:

jakarta.servlet.ServletException: Handler processing failed: java.lang.NoClassDefFoundError: jakarta/servlet/jsp/el/VariableResolver
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:986)
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:866)
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1000)
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:892)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:633)
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:874)
	at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:723)

Expected behavior

JspTagLibs should work under EE11 the same way as EE10.

Sample

See https://stackoverflow.com/questions/79914234/is-freemarker-2-3-34-compatible-with-jakarta-ee11

Start by reproducing the Freemarker JspTagLibs example under EE11 and compare it with EE10, using the reported NoClassDefFoundError as the entry point. Trace the Spring Security JSP taglib integration and identify where jakarta.servlet.jsp.el.VariableResolver is referenced. Done means the same template works under EE11 as it does under EE10, with coverage for the failing case.