Update ghost

Changes:

- https://github.com/docker-library/ghost/commit/2fd9409: Update to 2.20.1, ghost-cli 1.9.9
- https://github.com/docker-library/ghost/commit/9f39d32: Update to 2.20.0, ghost-cli 1.9.9

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: 2.19.4, 2.19, 2, latest
+Tags: 2.20.1, 2.20, 2, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: 3190a0fb7e792bcf032cd2f54ee4d7d6b52cd208
+GitCommit: 2fd94097ba5a9690401cb8d52c3319f8dd78d0a1
 Directory: 2/debian
 
-Tags: 2.19.4-alpine, 2.19-alpine, 2-alpine, alpine
+Tags: 2.20.1-alpine, 2.20-alpine, 2-alpine, alpine
 Architectures: amd64, arm32v6, arm64v8, i386, ppc64le, s390x
-GitCommit: 3190a0fb7e792bcf032cd2f54ee4d7d6b52cd208
+GitCommit: 2fd94097ba5a9690401cb8d52c3319f8dd78d0a1
 Directory: 2/alpine
 
 Tags: 1.25.7, 1.25, 1