fix: Adjust branch name in server files

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

README.md

@@ -5,14 +5,14 @@
 -->
 # Nextcloud Server ☁
 [![REUSE status](https://api.reuse.software/badge/github.com/nextcloud/server)](https://api.reuse.software/info/github.com/nextcloud/server)
-[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/nextcloud/server/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/nextcloud/server/?branch=master)
-[![codecov](https://codecov.io/gh/nextcloud/server/branch/master/graph/badge.svg)](https://codecov.io/gh/nextcloud/server)
+[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/nextcloud/server/badges/quality-score.png?b=stable31)](https://scrutinizer-ci.com/g/nextcloud/server/?branch=stable31)
+[![codecov](https://codecov.io/gh/nextcloud/server/branch/stable31/graph/badge.svg)](https://codecov.io/gh/nextcloud/server)
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/209/badge)](https://bestpractices.coreinfrastructure.org/projects/209)
 [![Design](https://contribute.design/api/shield/nextcloud/server)](https://contribute.design/nextcloud/server)
 
 **A safe home for all your data.**
 
-![](https://raw.githubusercontent.com/nextcloud/screenshots/master/nextcloud-hub-files-25-preview.png)
+![](https://raw.githubusercontent.com/nextcloud/screenshots/stable31/nextcloud-hub-files-25-preview.png)
 
 ## Why is this so awesome? 🤩
 
@@ -59,7 +59,7 @@ There are many ways to contribute, of which development is only one! Find out [h
 
 Third-party components are handled as git submodules which have to be initialized first. So aside from the regular git checkout invoking `git submodule update --init` or a similar command is needed, for details see Git documentation.
 
-Several apps that are included by default in regular releases such as [First run wizard](https://github.com/nextcloud/firstrunwizard) or [Activity](https://github.com/nextcloud/activity) are missing in `master` and have to be installed manually by cloning them into the `apps` subfolder.
+Several apps that are included by default in regular releases such as [First run wizard](https://github.com/nextcloud/firstrunwizard) or [Activity](https://github.com/nextcloud/activity) are missing in `stable31` and have to be installed manually by cloning them into the `apps` subfolder.
 
 Otherwise, git checkouts can be handled the same as release archives, by using the `stable*` branches. Note they should never be used on production systems.
 

codecov.yml

@@ -1,7 +1,7 @@
 # SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
 # SPDX-License-Identifier: AGPL-3.0-or-later
 codecov:
-  branch: master
+  branch: stable31
   ci:
   - drone.nextcloud.com
   - '!scrutinizer-ci.com'