Raise build timeout

appveyor.yml

@@ -26,7 +26,7 @@ install:
   
   - cmd: '%MSYS% C:/msys64/home/appveyor/gajim/win/build.sh'
   # Ugly workaround, because i found no way to tell when mingw32.exe returns
-  - cmd: timeout 900
+  - cmd: timeout 1100
 
   # Push Installer Exe
   - ps: $env:TIME_STRING=(get-date -UFormat "%Y-%m-%d").ToString()