Rusty Russell 000462c282 pytest: fix flakes in test_onchain_reestablish_reply and test_reestablish_closed_channels ...

We can have:
1. A slow test, so we're near the 60 second tolerance for bitcoind failures.
2. On shutdown, we fail and we hit the limit.

```
lightningd-2 2026-02-18T02:21:19.642Z **BROKEN** plugin-bcli: bitcoin-cli -regtest -datadir=/tmp/ltests-f3nd9ykw/test_reestablish_closed_channels_1/lightning-2/ -rpcclienttimeout=60 -rpcport=57403 -rpcuser=... -stdinrpcpass -stdin getblockhash 104 exited 1 (after 58 other errors) 'error: JSON value of type null is not of expected type number
lightningd-2 2026-02-18T02:21:19.642Z **BROKEN** plugin-bcli: '; we have been retrying command for --bitcoin-retry-timeout=60 seconds; bitcoind setup or our --bitcoin-* configs broken?
lightningd-2 2026-02-18T02:21:19.642Z INFO    plugin-bcli: Killing plugin: exited during normal operation
lightningd-2 2026-02-18T02:21:19.642Z **BROKEN** lightningd: The Bitcoin backend died.
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: FATAL SIGNAL 6 (version 7f635ff-modded)
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: /home/runner/work/lightning/lightning/common/daemon.c:46 (send_backtrace) 0x562ab3ef1307
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: /home/runner/work/lightning/lightning/common/daemon.c:83 (crashdump) 0x562ab3ef2758
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0 ((null)) 0x7fd7e584532f
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: ./nptl/pthread_kill.c:44 (__pthread_kill_implementation) 0x7fd7e589eb2c
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: ./nptl/pthread_kill.c:78 (__pthread_kill_internal) 0x7fd7e589eb2c
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: ./nptl/pthread_kill.c:89 (__GI___pthread_kill) 0x7fd7e589eb2c
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: ../sysdeps/posix/raise.c:26 (__GI_raise) 0x7fd7e584527d
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: ./stdlib/abort.c:79 (__GI_abort) 0x7fd7e58288fe
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: /home/runner/work/lightning/lightning/lightningd/log.c:1128 (fatal_vfmt) 0x562ab3bc7675
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: /home/runner/work/lightning/lightning/lightningd/log.c:1138 (fatal) 0x562ab3bc77db
lightningd-2 2026-02-18T02:21:19.865Z **BROKEN** lightningd: backtrace: /home/runner/work/lightning/lightning/lightningd/bitcoind.c:27 (bitcoin_destructor) 0x562ab3a4ae63
lightningd-2 2026-02-18T02:21:19.866Z **BROKEN** lightningd: backtrace: /home/runner/work/lightning/lightning/ccan/ccan/tal/tal.c:246 (notify) 0x562ab40d5d52
lightningd-2 2026-02-18T02:21:19.866Z **BROKEN** lightningd: backtrace: /home/runner/work/lightning/lightning/ccan/ccan/tal/tal.c:437 (del_tree) 0x562ab40d6d5a
lightningd-2 2026-02-18T02:21:19.866Z **BROKEN** lightningd: backtrace: /home/runner/work/lightning/lightning/ccan/ccan/tal/tal.c:532 (tal_free) 0x562ab40d66f0
lightningd-2 2026-02-18T02:21:19.866Z **BROKEN** lightningd: backtrace: /home/runner/work/lightning/lightning/lightningd/plugin.c:469 (plugin_kill) 0x562ab3cd9112
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

2026-02-20 10:47:10 +10:30

186 KiB

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