Fix Generic.Strings.UnnecessaryHeredoc sniff (#45876)

Being added in WPCS 3.2.

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/19300503272

Upstream-Ref: Automattic/jetpack@14f37f9

Author: anomiex

composer.json

@@ -16,7 +16,7 @@
 	},
 	"require-dev": {
 		"yoast/phpunit-polyfills": "^4.0.0",
-		"automattic/jetpack-changelogger": "^6.0.8",
+		"automattic/jetpack-changelogger": "^6.0.9-alpha",
 		"automattic/phpunit-select-config": "^1.0.3"
 	},
 	"autoload": {