Update roles/custom/matrix-bot-draupnir/defaults/main.yml: strip a noisy warning and the order to check in at the upstream

Multiple use of the phrase "you know what you are doing" does not increase its effect but rather makes it noisy instead. Since it is warned with capitalized "DO NOT", it is enough.

Also replace the order to check in at the upstream with the recommendation, as it is inconsistent for this project overall to ask users to do so. It is not sensible to make an exception for Draupnir.

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

roles/custom/matrix-bot-draupnir/defaults/main.yml

@@ -100,8 +100,8 @@ matrix_bot_draupnir_raw_homeserver_url: ""
 #
 # Whether or not Draupnir should apply `m.room.server_acl` events.
 # DO NOT change this to `true` unless you are very confident that you know what you are doing.
+# It is recommended to consult with people from the upstream project beforehand.
 #
-# Please follow the advice of upstream and only change this value if you know what your doing.
 # It is exposed here because it is common enough to be valid to expose.
 matrix_bot_draupnir_disable_server_acl: "false"