chore: upgrade to 1.3.0+6.42.0-alpine

compose.yml

@@ -1,6 +1,6 @@
 services:
   app:
-    image: ghost:6.21.2-alpine
+    image: ghost:6.42.0-alpine
     environment:
       # see https://ghost.org/docs/config/#configuration-options
       database__client: mysql
@@ -51,7 +51,7 @@ services:
         - "traefik.http.middlewares.${STACK_NAME}-redirect.redirectscheme.permanent=true"
         - "backupbot.backup=true"
         - "backupbot.backup.path=/var/lib/ghost/content"
-        - "coop-cloud.${STACK_NAME}.version=1.3.0+6.21.2-alpine"
+        - "coop-cloud.${STACK_NAME}.version=1.3.0+6.42.0-alpine"
     healthcheck:
       test: ["CMD", "wget", "--header=X-Forwarded-Proto: https", "--spider", "-q", "http://localhost:2368/ghost/api/admin/site"]
       interval: 30s
@@ -110,4 +110,4 @@ configs:
     file: entrypoint.sh
   mysql_backup:
     name: ${STACK_NAME}_mysql_backup_${MYSQL_BACKUP_VERSION}
-    file: mysql_backup.sh
+    file: mysql_backup.sh