Merge pull request #1408 from Atem18/patch-2

fix(#1406): set Mediawiki MYSQL_RANDOM_ROOT_PASSWORD boolean to a string

mediawiki/stack.yml

@@ -25,4 +25,4 @@ services:
       MYSQL_DATABASE: my_wiki
       MYSQL_USER: wikiuser
       MYSQL_PASSWORD: example
-      MYSQL_RANDOM_ROOT_PASSWORD: yes
+      MYSQL_RANDOM_ROOT_PASSWORD: 'yes'