Perform NullAway build-time checks in more modules

This commit enables null-safety build-time checks in:
 - spring-jdbc
 - spring-r2dbc
 - spring-orm
 - spring-beans
 - spring-aop

See gh-32475

spring-core-test/src/main/java/org/springframework/aot/agent/InstrumentedMethod.java

@@ -187,6 +187,7 @@ enum InstrumentedMethod {
 	/**
 	 * {@link Class#getField(String)}.
 	 */
+	@SuppressWarnings("NullAway")
 	CLASS_GETFIELD(Class.class, "getField", HintType.REFLECTION,
 			invocation -> {
 				Field field = invocation.getReturnValue();