Feat: Add closing tx #5311

Job	Run time
formatting-dprint	16s
lint-commits	6s
generate-ffi	1m 42s
ln-dlc-node-tests	5m 23s
clippy	1m 48s
payout-curve	3m 21s
Format and lint Flutter code	44s
e2e_tests_prepare	10m 37s
unit-tests	6m 32s
e2e-tests (./target/debug/deps/e2e_basic-dcc04210019b0d3a)	1m 53s
e2e-tests (./target/debug/deps/e2e_close_position-4919796e195a7647)	3m 4s
e2e-tests (./target/debug/deps/e2e_collaborative_close_channel-ba591c1e21b59a09)	3m 42s
e2e-tests (./target/debug/deps/e2e_collaborative_revert-7cc1f8807f43a423)	2m 51s
e2e-tests (./target/debug/deps/e2e_force_close_position-919f72357efb33d1)	2m 36s
e2e-tests (./target/debug/deps/e2e_open_position-cedad2b4e39942a0)	2m 20s
e2e-tests (./target/debug/deps/e2e_open_position_small_utxos-0bf65aa7fedece69)	2m 58s
e2e-tests (./target/debug/deps/e2e_reject_offer-01cd84c216b89780)	2m 30s
e2e-tests (./target/debug/deps/e2e_restore_from_backup-9f832d9042119b0c)	3m 20s
e2e-tests (./target/debug/deps/e2e_rollover_position-ef9f7981c2dfe990)	3m 8s
e2e_tests_check	1s
	58m 52s

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