chore: Implement settings dump schema to update firefox remote servic…, p=#11579

* chore: Implement settings dump schema to update firefox remote services data, b=no-bug, c=configs, scripts

* feat: Also update with timestamps, b=no-bug, c=configs, scripts

* chore: Move JSON with comments to a new module, b=no-bug, c=scripts, tests

---------

Signed-off-by: mr. m <91018726+mr-cheffy@users.noreply.github.com>

scripts/json_with_comments.py

@@ -0,0 +1,14 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import json
+
+
+class JSONWithCommentsDecoder(json.JSONDecoder):
+  def __init__(self, **kw):
+    super().__init__(**kw)
+
+  def decode(self, s: str) -> Any:
+    s = '\n'.join(l for l in s.split('\n') if not l.lstrip(' ').startswith('//'))
+    return super().decode(s)