chore(tests): Attempting to fix flaxy SMTP unit test (#92786)

Signed-off-by: Dave Henderson <dave.henderson@grafana.com>

pkg/services/notifications/smtp_test.go

@@ -294,16 +294,16 @@ func TestSmtpSend(t *testing.T) {
 
 		count, err := client.Send(ctx, msgs...)
 		require.NoError(t, err)
-		require.Equal(t, 3, count)
+		assert.Equal(t, 3, count)
 
 		// workaround for https://github.com/mocktools/go-smtp-mock/issues/181
 		time.Sleep(1 * time.Millisecond)
 		messages := srv.MessagesAndPurge()
-		require.Len(t, messages, 3)
+		assert.Len(t, messages, 3)
 
 		for i, sentMsg := range messages {
 			rcpts := sentMsg.RcpttoRequestResponse()
-			require.EqualValues(t, [][]string{
+			assert.EqualValues(t, [][]string{
 				{fmt.Sprintf("RCPT TO:<rcpt%d@example.com>", i+1), "250 Received"},
 			}, rcpts)
 
@@ -316,7 +316,7 @@ func TestSmtpSend(t *testing.T) {
 			// make sure the trace is propagated
 			traceId := span.SpanContext().TraceID().String()
 			hasPrefix := strings.HasPrefix(hdr.Get("traceparent"), "00-"+traceId+"-")
-			require.True(t, hasPrefix)
+			assert.True(t, hasPrefix)
 
 			// one of the lines should be the body we expect!
 			found := false
@@ -334,7 +334,7 @@ func TestSmtpSend(t *testing.T) {
 				}
 			}
 
-			require.True(t, found)
+			assert.True(t, found)
 		}
 	})
 }