Update ghost

Changes:

- https://github.com/docker-library/ghost/commit/2b5ade9: Update to 5.75.0, ghost-cli 1.25.3

library/ghost

@@ -5,12 +5,12 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Austin Burdine <[email protected]> (@acburdine)
 GitRepo: https://github.com/docker-library/ghost.git
 
-Tags: 5.74.5, 5.74, 5, latest
+Tags: 5.75.0, 5.75, 5, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: e0784b022e3dc203e61c79b34ade5517109fb70d
+GitCommit: 2b5ade9b98a178d1d2980127e19430069a327691
 Directory: 5/debian
 
-Tags: 5.74.5-alpine, 5.74-alpine, 5-alpine, alpine
+Tags: 5.75.0-alpine, 5.75-alpine, 5-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: e0784b022e3dc203e61c79b34ade5517109fb70d
+GitCommit: 2b5ade9b98a178d1d2980127e19430069a327691
 Directory: 5/alpine