Fix bad APP_KEY in Docker Compose files

Author: rjhenry

docker-compose.test.yml

@@ -21,7 +21,7 @@ services:
     - mysql
     environment:
     - APP_URL=http://localhost:${DEV_PORT:-8080}
-    - APP_KEY=SomeRandomString
+    - APP_KEY=SomeRandomStringWith32Characters
     - DB_HOST=mysql:3306
     - DB_DATABASE=bookstack
     - DB_USERNAME=bookstack

docker-compose.yml

@@ -24,7 +24,7 @@ services:
     # APP_KEY is used for encryption where needed, so needs to be persisted to
     # preserve decryption abilities.
     # Can run `php artisan key:generate` to generate a key
-    - APP_KEY=SomeRandomString
+    - APP_KEY=SomeRandomStringWith32Characters
     volumes:
     - uploads:/var/www/bookstack/public/uploads
     - storage-uploads:/var/www/bookstack/storage/uploads