tests: Fix PHPUnit 12.5.11 breakage (#47042)

PHPUnit 12.5.11 has started throwing deprecation warnings about using
`->with*()` functions on its stubs (versus mocks), and also backed out
some of the corresponding whining that was fixed in #46260 that caused
us to switch some things from mocks to stubs in the first place. Whee.

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/21870243516

Upstream-Ref: Automattic/jetpack@3666873

Author: anomiex

composer.json

@@ -5,7 +5,7 @@
 	"license": "GPL-2.0-or-later",
 	"require-dev": {
 		"yoast/phpunit-polyfills": "^4.0.0",
-		"automattic/jetpack-changelogger": "^6.0.13",
+		"automattic/jetpack-changelogger": "^6.0.14-alpha",
 		"automattic/phpunit-select-config": "^1.0.3"
 	},
 	"autoload": {