v1.8.20

What's Changed

• [1.x] ci(core): pin external actions to immutable commit hashes by @DavideIadeluca in #4954
• [1.x] fix: resolve translation references in implicitly-loaded fallback catalogues by @gianniguida in #5024
• [1.x] feat(phpstan): report misaligned extender callback parameters by @DavideIadeluca in #5050
• [1.x] fix: guard exec() in InfoCommand for hosts where it is disabled by @imorland in #5060
• chore: prep 1.8.20 by @imorland in #5064

Full Changelog: v1.8.19...v1.8.20