chore(CI): Adjust testing matrix for Nextcloud 29 on stable29

Signed-off-by: Joas Schilling <coding@schilljs.com>

Author: nickvergessen

.github/workflows/cypress-e2e.yml

@@ -19,7 +19,7 @@ jobs:
       npmVersion: ${{ steps.versions.outputs.npmVersion }}
     strategy:
       matrix:
-        server-versions: ['master']
+        server-versions: ['stable29']
 
     steps:
       - name: Checkout server

composer.json

@@ -7,7 +7,7 @@
 		"psalm/phar": "^5.4",
 		"phpunit/phpunit": "^9.5",
 		"ext-mbstring": "*",
-		"nextcloud/ocp": "dev-master"
+		"nextcloud/ocp": "dev-stable29"
 	},
 	"license": "AGPLv3",
 	"authors": [