Update ghost

Changes:

- TryGhost/docker-library-ghost@949d90a: Update 6 to 6.28.0

Author: docker-library-bot

library/ghost

@@ -4,12 +4,12 @@ Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
              Joseph Ferguson <yosifkit@gmail.com> (@yosifkit),
              Austin Burdine <austin@acburdine.me> (@acburdine)
 GitRepo: https://github.com/docker-library/ghost.git
-GitCommit: d1d182e9d7c9ea2ae1e79d0fe4a436aec4958962
+GitCommit: 949d90ab1cf3a7bcb7b2dd510752679b641689f7
 
-Tags: 6.27.0-bookworm, 6.27.0, 6.27-bookworm, 6.27, 6-bookworm, 6, bookworm, latest
+Tags: 6.28.0-bookworm, 6.28.0, 6.28-bookworm, 6.28, 6-bookworm, 6, bookworm, latest
 Directory: 6/bookworm
 Architectures: amd64, arm32v7, arm64v8, s390x
 
-Tags: 6.27.0-alpine3.23, 6.27.0-alpine, 6.27-alpine3.23, 6.27-alpine, 6-alpine3.23, 6-alpine, alpine3.23, alpine
+Tags: 6.28.0-alpine3.23, 6.28.0-alpine, 6.28-alpine3.23, 6.28-alpine, 6-alpine3.23, 6-alpine, alpine3.23, alpine
 Directory: 6/alpine3.23
 Architectures: amd64, arm64v8