Tests: Update the `Services_JSON` test for PHPUnit 9.5.10/8.5.21+.

Since PHPUnit 9.5.10 and 8.5.21, PHP deprecations are no longer converted to exceptions by default (`convertDeprecationsToExceptions="true"` can be configured to enable this).

Reference: [fac02620f6 Do not convert PHP deprecations to exceptions by default]; [https://github.com/sebastianbergmann/phpunit/blob/9.5.10/ChangeLog-9.5.md#9510---2021-09-25 PHPUnit 9.5.10 changelog].

With this change, the test for the `Services_JSON` compat class started failing:
{{{
There was 1 failure:

1) Tests_Compat_jsonEncodeDecode::test_json_encode_decode
Failed asserting that exception of type "PHPUnit\Framework\Error\Deprecated" is thrown.
}}}

This converts the native PHPUnit `::expectDeprecation()` method call in the test to a set of individual WP-specific `::setExpectedDeprecated()` method calls in order to not depend on PHPUnit behavior that is no longer the default.

Additionally, this commit includes support for catching deprecation notices from `_deprecated_file()` function calls to the `WP_UnitTestCase_Base::expectDeprecated()` method.

Follow-up to [46205], [46625], [48996], [51563], [51852], [51871].

Props jrf, netweb, SergeyBiryukov.
See #54183, #54029, #53363.
Built from https://develop.svn.wordpress.org/trunk@51872


git-svn-id: http://core.svn.wordpress.org/trunk@51465 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.9-alpha-51871';
+$wp_version = '5.9-alpha-51872';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.