In order to improve efficiency (see spring-projects/spring-framework#27619)
and allow native image compatibility, this commit uses WebJars versioned URLs
which are supported out of the box on Spring Boot via /META-INF/resources
default resource location configuration, removing the need to use
webjars-locator-core dependency and WebJarsResourceResolver.
I have been able to measure a consistent 5% startup time improvement on
the JVM with that simple change on my local machine.