Update ghost

Changes:

- https://github.com/docker-library/ghost/commit/7bd3cdc: Update to 5.103.0, ghost-cli 1.26.1

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: 5.101.6, 5.101, 5, latest
+Tags: 5.103.0, 5.103, 5, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: 95aa88b8b1c32dc2d28c4b55b1e54f3391a57d4d
+GitCommit: 7bd3cdc5837bebcae81aac3314513986cc2e2f84
 Directory: 5/debian
 
-Tags: 5.101.6-alpine, 5.101-alpine, 5-alpine, alpine
+Tags: 5.103.0-alpine, 5.103-alpine, 5-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: 95aa88b8b1c32dc2d28c4b55b1e54f3391a57d4d
+GitCommit: 7bd3cdc5837bebcae81aac3314513986cc2e2f84
 Directory: 5/alpine