Update ghost

Changes:

- https://github.com/docker-library/ghost/commit/3b71d0b: Update to 5.13.2, ghost-cli 1.23.0
- https://github.com/docker-library/ghost/commit/cdecef4: Update to 5.13.1, ghost-cli 1.23.0
- https://github.com/docker-library/ghost/commit/fd95d2b: Update to 5.13.0, ghost-cli 1.23.0
- https://github.com/docker-library/ghost/commit/f5f1d33: Update to 5.12.4, ghost-cli 1.23.0

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: 5.12.3, 5.12, 5, latest
+Tags: 5.13.2, 5.13, 5, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: f85d7bdccb6031b2cee7c90584b2887e6d6790f2
+GitCommit: 3b71d0beef8fbf9c604251d3fd8fe27876cde234
 Directory: 5/debian
 
-Tags: 5.12.3-alpine, 5.12-alpine, 5-alpine, alpine
+Tags: 5.13.2-alpine, 5.13-alpine, 5-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: f85d7bdccb6031b2cee7c90584b2887e6d6790f2
+GitCommit: 3b71d0beef8fbf9c604251d3fd8fe27876cde234
 Directory: 5/alpine
 
 Tags: 4.48.4, 4.48, 4