- updated to 7.0-rc4 release candidate

- Bug fixes only, we are in code freeze.
- update staging to 7.0-rc4 release

OBS-URL: https://build.opensuse.org/package/show/Emulators/wine?expand=0&rev=889

_service

@@ -3,7 +3,7 @@
     <param name="versionformat">@PARENT_TAG@</param>
     <param name="versionrewrite-pattern">v(.*)</param>
     <param name="url">https://github.com/wine-staging/wine-staging.git</param>
-    <param name="revision">refs/tags/v7.0-rc3</param>
+    <param name="revision">refs/tags/v7.0-rc4</param>
     <param name="match-tag">v*.*</param>
     <param name="scm">git</param>
   </service>