Provide more control over access to endpoint operations

This commit reworks the support for enabling and disabling endpoints,
replacing the on/off support that it provided with a finer-grained
access model that supports only allowing read-only access to endpoint
operations in addition to disabling an endpoint (access of none) and
fully enabling it (access of unrestricted).

The following properties are deprecated:

- management.endpoints.enabled-by-default
- management.endpoint.<id>.enabled

Their replacements are:

- management.endpoints.access.default
- management.endpoint.<id>.access

Similarly, the enableByDefault attribute on @Endpoint has been
deprecated with a new defaultAccess attribute replacing it.

Additionally, a new property has been introduced that allows an
operator to control the level of access to Actuator endpoints
that is permitted:

- management.endpoints.access.max-permitted

This property caps any access that may has been configured for
an endpoint. For example, if
management.endpoints.access.max-permitted is set to read-only and
management.endpoint.loggers.access is set to unrestricted, only
read-only access to the loggers endpoint will be allowed.

Closes gh-39046

spring-boot-project/spring-boot-test/src/test/java/org/springframework/boot/test/mock/mockito/MockitoTestExecutionListenerIntegrationTests.java

@@ -236,6 +236,7 @@ class MockitoTestExecutionListenerIntegrationTests {
 	@Nested
 	@TestMethodOrder(MethodOrderer.OrderAnnotation.class)
 	@TestInstance(Lifecycle.PER_CLASS)
+	@Disabled("https://github.com/spring-projects/spring-framework/issues/33690")
 	class ConfigureMockInBeforeAll {
 
 		@Mock