Update ghost

Changes:

- https://github.com/docker-library/ghost/commit/026e4fc: Update to 3.42.0, ghost-cli 1.16.0

library/ghost

@@ -4,14 +4,14 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/ghost.git
 
-Tags: 3.41.9, 3.41, 3, latest
+Tags: 3.42.0, 3.42, 3, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: cc7bffd4865216f0f833c0861ad16bbc927f3350
+GitCommit: 026e4fcfee2d7a511b62d97d60ac1068c1ffe389
 Directory: 3/debian
 
-Tags: 3.41.9-alpine, 3.41-alpine, 3-alpine, alpine
+Tags: 3.42.0-alpine, 3.42-alpine, 3-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: cc7bffd4865216f0f833c0861ad16bbc927f3350
+GitCommit: 026e4fcfee2d7a511b62d97d60ac1068c1ffe389
 Directory: 3/alpine
 
 Tags: 2.38.3, 2.38, 2