TEMP: use arduino-beta packager for 0.9.0-arduino5-static

Author: facchinm

extras/package_index.json.PR.template

@@ -35,7 +35,7 @@
               "version": "1.6.1-arduino"
             },
             {
-              "packager": "arduino",
+              "packager": "arduino-beta",
               "name": "openocd",
               "version": "0.9.0-arduino5-static"
             },