Update ghost

Changes:

- docker-library/ghost@a4a5534: Update to 5.107.0, ghost-cli 1.26.1

library/ghost

@@ -5,12 +5,12 @@ Maintainers: Tianon Gravi <admwiggin@gmail.com> (@tianon),
              Austin Burdine <austin@acburdine.me> (@acburdine)
 GitRepo: /~https://github.com/docker-library/ghost.git
 
-Tags: 5.106.1, 5.106, 5, latest
+Tags: 5.107.0, 5.107, 5, latest
 Architectures: amd64, arm32v7, arm64v8, ppc64le, s390x
-GitCommit: 29520866c9804614cae9b6b7bbcdd8d0ec81523e
+GitCommit: a4a553476e3ea77ff1b9b143f0c29a163c12932f
 Directory: 5/debian
 
-Tags: 5.106.1-alpine, 5.106-alpine, 5-alpine, alpine
+Tags: 5.107.0-alpine, 5.107-alpine, 5-alpine, alpine
 Architectures: amd64, arm32v6, arm32v7, arm64v8
-GitCommit: 29520866c9804614cae9b6b7bbcdd8d0ec81523e
+GitCommit: a4a553476e3ea77ff1b9b143f0c29a163c12932f
 Directory: 5/alpine