fe8c6b1e6a dev: add more automation to NixOS version updates (Erik Arvstedt)
Pull request description:
ACKs for top commit:
jonasnick:
ACK fe8c6b1e6a
Tree-SHA512: 692348f608dfe0aa0ab88427b8402f6a03c8b4fc1e62070ae6ceda40c7f96dbf02bda759437273bd6c73c5b55d2a1c149a9d1be3c05ae9f6483023dff1efcc18
Use the `update-flake.sh` script to auto-update the NixOS version at
various places.
Also update `examples/container/flake.nix` which has been
missing in the update instructions.
This test requires `electrs` to be enabled.
Also, by using `electrs` instead of `clightning` we avoid the bug
where clightning hangs at startup when internet access is unavailable.
Due to technical limititations, internet access is available in NixOS
containers only after the container has started.
Some of the commands listed in usage.sh require clightning to be
enabled. This commit enables clightning so they will work. It also
removes electrs to keep things simple, since electrs is not in
usage.sh
