chore(deps): update wordpress docker tag to v7.0.3 (#73)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| wordpress | patch | `7.0.2` -> `7.0.3` |

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Reviewed-on: #73
Co-authored-by: Renovate Bot <renovate@coopcloud.tech>

compose.selfmanaged.yml

@@ -3,7 +3,7 @@ version: "3.8"
 
 services:
   app:
-    image: "wordpress:7.0.2"
+    image: "wordpress:7.0.3"
     volumes:
       - "wordpress:/var/www/html/"
     environment:

compose.yml

@@ -3,7 +3,7 @@ version: "3.8"
 
 services:
   app:
-    image: "wordpress:7.0.2"
+    image: "wordpress:7.0.3"
     volumes:
       - "wordpress_content:/var/www/html/wp-content/"
     networks: