[bug]: forward_interceptor_restart Received unexpected error EOF

[yyforyongyu]

Have seen this couple times, one example from this build.

--- FAIL: TestLightningNetworkDaemon (264.33s)
    harness_setup.go:25: Setting up HarnessTest...
    harness_setup.go:38: Prepare the miner and mine blocks to activate segwit...
    harness_setup.go:46: Connecting the miner at 127.0.0.1:10033 with the chain backend...
    --- FAIL: TestLightningNetworkDaemon/tranche02/43-of-269/btcd/forward_interceptor_restart (29.41s)
        harness_node.go:403: Starting node (name=Alice) with PID=18049
        harness_node.go:403: Starting node (name=Bob) with PID=18109
        harness_node.go:403: Starting node (name=Carol) with PID=18129
        harness_node.go:403: Starting node (name=Dave) with PID=18171
        harness_node.go:403: Starting node (name=Bob) with PID=18581
        harness_node.go:403: Starting node (name=Alice) with PID=18611
        lnd_forward_interceptor_test.go:666: 
            	Error Trace:	/home/runner/work/lnd/lnd/itest/lnd_forward_interceptor_test.go:666
            	            				/home/runner/work/lnd/lnd/lntest/harness.go:297
            	            				/home/runner/work/lnd/lnd/itest/lnd_test.go:130
            	Error:      	Received unexpected error:
            	            	EOF
            	Test:       	TestLightningNetworkDaemon/tranche02/43-of-269/btcd/forward_interceptor_restart
            	Messages:   	failed to send request
        harness.go:375: finished test: forward_interceptor_restart, start height=562, end height=569, mined blocks=7
        harness.go:334: test failed, skipped cleanup
    lnd_test.go:138: Failure time: 2025-01-24 11:00:56.443
FAIL