Include node name in peer telemetry logging

lib/oban/telemetry.ex

@@ -358,6 +358,7 @@ defmodule Oban.Telemetry do
   * `event` — always `peer:election`
   * `leader` — boolean indicating whether the peer is the leader
   * `message` — information about the peers role in an election
+  * `node` — the name of the node that changed leadership
   * `was_leader` — boolean indicating whether the peer was leader before the election
 
   #### Plugin Events
@@ -537,8 +538,9 @@ defmodule Oban.Telemetry do
       %{
         event: "peer:election",
         leader: leader,
-        was_leader: was_leader,
-        message: message
+        message: message,
+        node: meta.conf.node,
+        was_leader: was_leader
       }
     end)
   end

test/oban/telemetry_test.exs

@@ -181,14 +181,15 @@ defmodule Oban.TelemetryTest do
       logged =
         capture_log(fn ->
           :telemetry.execute([:oban, :peer, :election, :stop], %{}, %{
-            conf: %{},
+            conf: %{node: "worker.1"},
             leader: true,
             was_leader: false
           })
         end)
 
       assert logged =~ ~s("event":"peer:election")
       assert logged =~ ~s("leader":true)
+      assert logged =~ ~s("node":"worker.1")
       assert logged =~ ~s("was_leader":false)
       assert logged =~ ~s("message":"peer became leader")
     end