fix(templateRequest): avoid throwing syntax error in Android 2.3

Android 2.3 throws an `Uncaught SyntaxError: Unexpected token finally`
pointing at this line. Change `.finally` to bracket notation.

Fixes #11089
Closes #11051
Closes #11088

Author: adamdbradley

src/ng/templateRequest.js

@@ -40,7 +40,7 @@ function $TemplateRequestProvider() {
       };
 
       return $http.get(tpl, httpOptions)
-        .finally(function() {
+        ['finally'](function() {
           handleRequestFn.totalPendingRequests--;
         })
         .then(function(response) {