Update ghost

Changes:

- https://github.com/docker-library/ghost/commit/41e4c7c: Update to 5.17.2, ghost-cli 1.23.1
- https://github.com/docker-library/ghost/commit/47de799: Update to 4.48.6, ghost-cli 1.23.1

library/ghost

@@ -4,22 +4,22 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/ghost.git
 
-Tags: 5.17.1, 5.17, 5, latest
+Tags: 5.17.2, 5.17, 5, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: 38a4812d0df05c0922c302cba0a6a3faf05063c1
+GitCommit: 41e4c7c3d53684fd14f177f6cd2822ed62fef0fe
 Directory: 5/debian
 
-Tags: 5.17.1-alpine, 5.17-alpine, 5-alpine, alpine
+Tags: 5.17.2-alpine, 5.17-alpine, 5-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: 38a4812d0df05c0922c302cba0a6a3faf05063c1
+GitCommit: 41e4c7c3d53684fd14f177f6cd2822ed62fef0fe
 Directory: 5/alpine
 
-Tags: 4.48.5, 4.48, 4
+Tags: 4.48.6, 4.48, 4
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: 294dad6d42fae103e6ef3a31a3f37b2084c65650
+GitCommit: 47de7994f338e7619fd680051d08a2889598b460
 Directory: 4/debian
 
-Tags: 4.48.5-alpine, 4.48-alpine, 4-alpine
+Tags: 4.48.6-alpine, 4.48-alpine, 4-alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: 294dad6d42fae103e6ef3a31a3f37b2084c65650
+GitCommit: 47de7994f338e7619fd680051d08a2889598b460
 Directory: 4/alpine