Raise max to_self_delay.

[valentinewallace]

lnd requires this to_self_delay for the max channel size
(excluding wumbo).

[TheBlueMatt]

Docs in config.rs need updating "lightning/src/util/config.rs:132: /// Default value: MAX_LOCAL_BREAKDOWN_TIMEOUT (1008), which we also enforce as a maximum value
" (though that shouldn't mention the non-public constant, either).

[valentinewallace]

Thanks missed that, updated.

[codecov]

Codecov Report

Merging #826 (633c327) into main (8b4ea56) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #826   +/-   ##
=======================================
  Coverage   90.97%   90.97%           
=======================================
  Files          48       48           
  Lines       26538    26540    +2     
=======================================
+ Hits        24144    24146    +2     
  Misses       2394     2394           

Impacted Files	Coverage Δ
lightning/src/ln/channelmanager.rs	85.47% <ø> (ø)
lightning/src/util/config.rs	48.78% <ø> (ø)
lightning/src/chain/chainmonitor.rs	93.93% <100.00%> (-0.27%)	⬇️
lightning/src/chain/channelmonitor.rs	95.54% <100.00%> (+0.01%)	⬆️
lightning/src/ln/functional_tests.rs	96.88% <0.00%> (ø)

---

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[arik-so]

The missing units in the comments are not due to this PR, but I think this PR should absolutely fix them for future readers. Other than that, LGTM.

[TheBlueMatt]

Calling it 0.0.13 because it appears we need this to reasonably open channels live today, which is probably worth merging before shipping a release that can't practically be used.