Update addons-linter for duplicate key fix

Include hardcoding of "webextension" for AMO, as the linter has
dropped this output.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "addons-server",
-  "version": "0.0.12",
+  "version": "0.0.13",
   "private": true,
   "engines": {
     "node": ">= 0.10.x",
@@ -8,10 +8,10 @@
   },
   "dependencies": {
     "acorn": "0.4.0",
+    "addons-linter": "0.14.0",
     "clean-css": "2.0.x",
     "less": "1.3.x",
     "stylus": "0.32.x",
-    "uglify-js": "2.4.x",
-    "addons-linter": "0.12.3"
+    "uglify-js": "2.4.x"
   }
 }

src/olympia/devhub/utils.py

@@ -170,7 +170,9 @@ def fix_addons_linter_output(validation, listed=True):
             'high': 0,
             'trivial': 0
         },
-        'detected_type': validation['metadata']['architecture'],
+        # The addons-linter only deals with WebExtensions and no longer
+        # outputs this itself, so we hardcode it.
+        'detected_type': 'extension',
         'ending_tier': 5,
     }