Revert "Upgrade to upstream version 15.0.4"

This reverts commit 85f650409d.

README.md

@@ -5,7 +5,7 @@ Nextcloud for YunoHost
 own data. A personal cloud which run on your own server. With Nextcloud
 you can synchronize your files over your devices.
 
-**Shipped version:** 15.0.4
+**Shipped version:** 15.0.2
 
 [![Install Nextcloud with YunoHost](https://install-app.yunohost.org/install-with-yunohost.png)](https://install-app.yunohost.org/?app=nextcloud)
 ![](https://raw.githubusercontent.com/nextcloud/screenshots/master/files/Files%20Overview.png)

manifest.json

@@ -6,7 +6,7 @@
         "en": "Access & share your files, calendars, contacts, mail & more from any device, on your terms",
         "fr": "Consultez et partagez vos fichiers, agendas, carnets d'adresses, emails et bien plus depuis les appareils de votre choix, sous vos conditions"
     },
-    "version": "15.0.4~ynh1",
+    "version": "15.0.2~ynh1",
     "url": "https://nextcloud.com",
     "license": "AGPL-3.0",
     "maintainer": {

scripts/upgrade.d/upgrade.last.sh

@@ -1,10 +1,10 @@
 #!/bin/bash
 
 # Last available nextcloud version
-next_version="15.0.4"
+next_version="15.0.2"
 
 # Nextcloud tarball checksum sha256
-nextcloud_source_sha256="f87db047c174f563e391a22c959d9ace767ca14ef0f97fc394f3061fc63d8f77"
+nextcloud_source_sha256="c1f4cc33e39994ddbe6777370b62c30b7ae52136a0530c0b9922770803ca0fea"
 
 # This function will only be executed upon applying the last upgrade referenced above
 last_upgrade_operations () {