fix(relay): actually expire channels which allows re-binding them

[thomaseizinger]

Previously, the relay neither scheduled a Wake command nor did it register a TimedAction to expire a channel binding. Such an action was only scheduled after the first refresh.

This PR fixes this and adds a test that asserts we can re-bind the same channel to a different peer after 15 minutes.

Resolves: #3979.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
firezone	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 12, 2024 8:02am

[github-actions]

Terraform Cloud Plan Output

Plan: 9 to add, 7 to change, 9 to destroy.

Terraform Cloud Plan

[conectado]

Nice! LGTM

[github-actions]

Performance Test Results

TCP

Test Name	Received/s	Sent/s	Retransmits
direct-tcp-client2server	63.4 MiB (+1%)	63.8 MiB (+1%)	30 (-32%)
direct-tcp-server2client	52.6 MiB (-1%)	52.9 MiB (-1%)	43 (+34%)
relayed-tcp-client2server	28.3 MiB (-4%)	31.0 MiB (-4%)	411 (+6%)
relayed-tcp-server2client	30.1 MiB (+7%)	32.3 MiB (+6%)	21 (-95%)

UDP

Test Name	Total/s	Jitter	Lost
direct-udp-client2server	50.0 MiB (+0%)	0.18ms (+8%)	0.00% (NaN%)
direct-udp-server2client	50.0 MiB (+0%)	0.19ms (-6%)	0.00% (NaN%)
relayed-udp-client2server	50.0 MiB (-0%)	0.32ms (-32%)	21.65% (+7%)
relayed-udp-server2client	50.0 MiB (-0%)	1.32ms (+385%)	19.83% (-2%)