Introduce @⁠DisabledInAotMode in the TestContext framework

This commit introduces @⁠DisabledInAotMode in the TestContext
framework to support the following use cases.

- Disabling AOT build-time processing of a test ApplicationContext --
  applicable to any testing framework (JUnit 4, JUnit Jupiter, etc.).

- Disabling an entire test class or a single test method at run time
  when the test suite is run with AOT optimizations enabled -- only
  applicable to JUnit Jupiter based tests.

Closes gh-30834

src/checkstyle/checkstyle-suppressions.xml

@@ -95,6 +95,7 @@
 	<suppress files="org[\\/]springframework[\\/]test[\\/]context[\\/]junit[\\/]jupiter[\\/].+" checks="IllegalImport" id="bannedJUnitJupiterImports"/>
 	<suppress files="org[\\/]springframework[\\/]test[\\/]context[\\/]testng[\\/].+" checks="IllegalImport" id="bannedTestNGImports"/>
 	<!-- spring-test - main -->
+	<suppress files="DisabledInAotMode" checks="IllegalImport" id="bannedJUnitJupiterImports"/>
 	<suppress files="src[\\/]main[\\/]java[\\/]org[\\/]springframework[\\/]test[\\/]util[\\/].+Helper" checks="IllegalImport" id="bannedHamcrestImports"/>
 	<suppress files="src[\\/]main[\\/]java[\\/]org[\\/]springframework[\\/]test[\\/]web[\\/]client[\\/]match[\\/].+Matchers" checks="IllegalImport" id="bannedHamcrestImports"/>
 	<suppress files="src[\\/]main[\\/]java[\\/]org[\\/]springframework[\\/]test[\\/]web[\\/]reactive[\\/]server[\\/].+" checks="IllegalImport" id="bannedHamcrestImports"/>