Reject static Bean Override fields for @⁠MockitoBean, @⁠TestBean, etc.

Closes gh-33922

framework-docs/modules/ROOT/pages/testing/annotations/integration-spring/annotation-mockitobean.adoc

@@ -1,9 +1,10 @@
 [[spring-testing-annotation-beanoverriding-mockitobean]]
 = `@MockitoBean` and `@MockitoSpyBean`
 
-`@MockitoBean` and `@MockitoSpyBean` are used on fields in test classes to override beans
-in the test's `ApplicationContext` with a Mockito _mock_ or _spy_, respectively. In the
-latter case, an early instance of the original bean is captured and wrapped by the spy.
+`@MockitoBean` and `@MockitoSpyBean` are used on non-static fields in test classes to
+override beans in the test's `ApplicationContext` with a Mockito _mock_ or _spy_,
+respectively. In the latter case, an early instance of the original bean is captured and
+wrapped by the spy.
 
 By default, the annotated field's type is used to search for candidate beans to override.
 If multiple candidates match, `@Qualifier` can be provided to narrow the candidate to

framework-docs/modules/ROOT/pages/testing/annotations/integration-spring/annotation-testbean.adoc

@@ -1,8 +1,8 @@
 [[spring-testing-annotation-beanoverriding-testbean]]
 = `@TestBean`
 
-`@TestBean` is used on a field in a test class to override a specific bean in the test's
-`ApplicationContext` with an instance provided by a factory method.
+`@TestBean` is used on a non-static field in a test class to override a specific bean in
+the test's `ApplicationContext` with an instance provided by a factory method.
 
 The associated factory method name is derived from the annotated field's name, or the
 bean name if specified. The factory method must be `static`, accept no arguments, and