fix kitaplus task

tasks/kitaplus.yaml

@@ -2,7 +2,7 @@
 
 - name: kitaplus icon
   get_url:
-    src: https://www.kitaplus.de/wp-content/uploads/2017/01/KiTa-Plus-Logo-Homepage.png
+    url: https://www.kitaplus.de/wp-content/uploads/2017/01/KiTa-Plus-Logo-Homepage.png
     dest: /usr/share/icons/kitaplus.png
 
 - name: kitaplus desktop file