Merge pull request #1479 from nextcloud/update-stable31-target-versions

chore(CI): Adjust testing matrix for Nextcloud 31 on stable31

Author: susnux

composer.json

@@ -4,7 +4,7 @@
 	"license": "AGPLv3",
 	"require-dev": {
 		"nextcloud/coding-standard": "^1.3",
-		"nextcloud/ocp": "dev-master",
+		"nextcloud/ocp": "dev-stable31",
 		"phpunit/phpunit": "^9",
 		"vimeo/psalm": "^5.15"
 	},