Deprecate CommandLinePropertySource and associated implementations

Closes gh-31207

spring-core/src/test/java/org/springframework/core/env/JOptCommandLinePropertySourceTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2021 the original author or authors.
+ * Copyright 2002-2023 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,6 +31,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * @author Sam Brannen
  * @since 3.1
  */
+@SuppressWarnings("deprecation")
 class JOptCommandLinePropertySourceTests {
 
 	@Test

spring-core/src/test/java/org/springframework/core/env/SimpleCommandLinePropertySourceTests.java

@@ -29,6 +29,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  * @author Sam Brannen
  * @since 3.1
  */
+@SuppressWarnings("deprecation")
 class SimpleCommandLinePropertySourceTests {
 
 	@Test