ci: Run integration sqlite against code nightly

Signed-off-by: Julius Härtl <jus@bitgrid.net>

.github/workflows/integration.yml

@@ -51,6 +51,7 @@ jobs:
       # do not stop on another job's failure
       fail-fast: false
       matrix:
+        code-image: [ 'juliushaertl/nc-code-nightly:latest', 'collabora/code:latest' ]
         php-versions: ['8.1']
         databases: ['sqlite']
         server-versions: ['master']
@@ -60,7 +61,7 @@ jobs:
 
     services:
       collabora:
-        image: ghcr.io/juliushaertl/nextcloud-dev-code:latest
+        image: ${{ matrix.code-image }}
         env:
           extra_params: '--o:ssl.enable=false'
           aliasgroup1: 'http://nextcloud'