Update dependency wikimedia/testing-access-wrapper to v4 (#46836)

* Update dependency wikimedia/testing-access-wrapper to v4
* Remove workaround for fixed bug

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Co-authored-by: Renovate Bot <bot@renovateapp.com>
Co-authored-by: Brad Jorsch <brad.jorsch@automattic.com>

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/21494369844

Upstream-Ref: Automattic/jetpack@d9c2ed3

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": "^6.0.12",
+		"automattic/jetpack-changelogger": "^6.0.13-alpha",
 		"automattic/phpunit-select-config": "^1.0.3"
 	},
 	"autoload": {