Update the policy supported versions for WebRtcLocalIpsAllowedUrls.

The policy is merged to M79 and the version is updated accordingly.

Bug: 1012945
Change-Id: Ib17c819a342acd8b885e95e4134a84ac1b4e6a8a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1904233Reviewed-by: Julian Pastarmov <pastarmovj@chromium.org>
Commit-Queue: Qingsi Wang <qingsi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#714572}

components/policy/resources/policy_templates.json

@@ -13115,7 +13115,7 @@
         'type': 'array',
         'items': { 'type': 'string' },
       },
-      'supported_on': ['chrome.*:80-', 'chrome_os:80-'],
+      'supported_on': ['chrome.*:79-', 'chrome_os:79-'],
       'features': {
         'dynamic_refresh': False,
         'per_profile': True,