use update server version in tests

Signed-off-by: grnd-alt <salimbelakkaf@outlook.de>

.github/workflows/integration.yml

@@ -28,7 +28,7 @@ jobs:
       matrix:
         php-versions: ['8.1']
         databases: ['sqlite', 'mysql', 'pgsql']
-        server-versions: ['master']
+        server-versions: ['3rdparty/justinrainbow/json-schema']
 
     name: php${{ matrix.php-versions }}-${{ matrix.databases }}-${{ matrix.server-versions }}
 
@@ -74,7 +74,7 @@ jobs:
           uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
           with:
               repository: nextcloud/activity
-              ref: ${{ matrix.server-versions }}
+              ref: master
               path: apps/activity
 
       - name: Set up php ${{ matrix.php-versions }}

.github/workflows/phpunit-mysql.yml

@@ -68,7 +68,7 @@ jobs:
     strategy:
       matrix: ${{ fromJson(needs.matrix.outputs.matrix) }}
 
-    name: MySQL ${{ matrix.mysql-versions }} PHP ${{ matrix.php-versions }} Nextcloud ${{ matrix.server-versions }}
+    name: MySQL ${{ matrix.mysql-versions }} PHP ${{ matrix.php-versions }} Nextcloud 3rdparty/justinrainbow/json-schema
 
     services:
       mysql:
@@ -90,7 +90,7 @@ jobs:
         with:
           submodules: true
           repository: nextcloud/server
-          ref: ${{ matrix.server-versions }}
+          ref: 3rdparty/justinrainbow/json-schema
 
       - name: Checkout app
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2