Sort changelog entries

[skip ci]

CHANGELOG.md

@@ -7,8 +7,8 @@ RECENT CHANGES
 - Add: #987: more dev:console debug helper functions (by Christian Münch)
 - Add: #1000: additional phar tests (by Christian Münch)
 - Imp: #957: Exclude system_config_snapshot from stripped dumps (by Alexander Menk)
-- Imp: #1008: Allow use of pipefail where supported (by Dan Wallis)
 - Imp: #1007: Upgrade compatibility list for PHP versions (by Lukasz Bajsarowicz) 
+- Imp: #1008: Allow use of pipefail where supported (by Dan Wallis)
 - Imp: Change mage-os repo url and disable unstable dev build job (by Christian Münch)
 - Imp: Changed installation workflow starting with composer 2.3.7 (by Christian Münch)
 - Imp: Update 3rd party dependencies (Symfony, psysh, vfsstream, captainhook, requests lib, faker lib, phpunit, twig)