Update ghost

Changes:

- https://github.com/docker-library/ghost/commit/8d0c502: Update to 3.10.0, ghost-cli 1.13.1

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: 3.9.0, 3.9, 3, latest
+Tags: 3.10.0, 3.10, 3, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: 66b67f825a6a646b07f9bc0ca1d33304e1caa27d
+GitCommit: 8d0c502c028c47f28b9038d555d016e9f3b1adca
 Directory: 3/debian
 
-Tags: 3.9.0-alpine, 3.9-alpine, 3-alpine, alpine
+Tags: 3.10.0-alpine, 3.10-alpine, 3-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8, i386, ppc64le, s390x
-GitCommit: 66b67f825a6a646b07f9bc0ca1d33304e1caa27d
+GitCommit: 8d0c502c028c47f28b9038d555d016e9f3b1adca
 Directory: 3/alpine
 
 Tags: 2.38.0, 2.38, 2