chore(CI): Adjust testing matrix for Nextcloud 32 on stable32

Signed-off-by: Joas Schilling <[email protected]>

Author: nickvergessen

composer.json

@@ -4,7 +4,7 @@
 	"license": "AGPLv3",
 	"require-dev": {
 		"nextcloud/coding-standard": "^1.3",
-		"nextcloud/ocp": "dev-master",
+		"nextcloud/ocp": "dev-stable32",
 		"phpunit/phpunit": "^9",
 		"vimeo/psalm": "^5.15"
 	},