This commit makes sure the sweep requests are received before mining
blocks to trigger the actual sweeping.
In addition, `testFundingExpiryBlocksOnPending` is updated to deal with
the old `channel link not found` issue.
index
When abandoning a channel, we remove it from the graph and then add it
to the zombie channel index. However, if we then process a ChannelUpdate
for this channel it will result in us calling `processZombieUpdate`
which will delete the edge from the zombie index. The abandon channel
itest currently asserts that a channel is no longer in the graph by
asserting that when querying for the channel we get a "marked as zombie"
error but to account for the above series of operations, we now also
allow it to just not be found at all ("edge not found").
For anchor channels and neutrino backends we need to make sure
that sweeps of the same exclusive group are removed when one of
them is confirmed. Otherwise for neutrino backends those sweep
transaction are always rebroadcasted and are blocking funds in
the worst case scenario.
In LND v0.15.1, batch_open_channel used p2tr by default
for change output. However, in a later version, a breaking
change has been fixed in FundPSBT to make the change type
configurable (default to p2wkh). As batch_open_channel
uses FundPsbt, we need to put back p2tr as default for
change output
This commit also removes the first connection attempt inside
`SetupStandbyNodes` as the nodes are always connected inside each
subtest. The error returned from connection is now logged for debugging.
