fix(templates): radarr/prowlarr grants POST on indexer/{id}, sonarr doesn't

radarr/prowlarr.json grants get+put+post on /api/v3/indexer/{id};
sonarr/prowlarr.json (same consumer) grants only get+put on the same
route shape. Prowlarr's own sync client (RadarrV3Proxy.cs in
NzbDrone.Core/Applications/Radarr) POSTs only to the bare /api/v3/indexer
collection to create an indexer, and PUTs to /api/v3/indexer/{id} to
update one — it never POSTs to the {id} route. Removing the extra grant
to match the real call pattern and sonarr/prowlarr.json's scope.

Author: bakerboy448

root/app/www/public/templates/radarr/prowlarr.json

@@ -5,8 +5,7 @@
     ],
     "/api/v3/indexer/{id}": [
         "put",
-        "get",
-        "post"
+        "get"
     ],
     "/api/v3/indexer/schema": [
         "get"