Update documentation using deterministic generation

[rustyrussell]

Depends on #8556 Merged!

Now we do major surgery on autogenerate-rpc-examples.py. Finally we run it to produce the canned blocks and wallet for future runs, and re-enable it in CI.

[ShahanaFarooqui]

@rustyrussell The changes in ./tests/autogenerate-rpc-examples.py look good at first glance, but I am unable to test them locally due to missing test data files:

./tests/data/autogenerate-bitcoin-blocks.json
./tests/data/autogenerate-bitcoind-wallet.dat

Could you please add these files or provide instructions on how to generate them for local testing?

[ShahanaFarooqui]

Now uv run make update-doc-examples is throwing error:

15:12:18 - ERROR - Error in setting up nodes: txid f160d78f39a5ccb96c1439333787b98f1a37c1bb3765b34c74047c8895f4e397 not found
15:12:18 - ERROR - txid f160d78f39a5ccb96c1439333787b98f1a37c1bb3765b34c74047c8895f4e397 not found
Traceback (most recent call last):
  File "/home/shahana/workspace/lightning/tests/autogenerate-rpc-examples.py", line 1443, in test_generate_examples
    l1, l2, l3, l4, l5, l6, c12, c23, c25 = setup_test_nodes(node_factory, bitcoind, regenerate_blockchain)
                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/shahana/workspace/lightning/tests/autogenerate-rpc-examples.py", line 331, in setup_test_nodes
    c12, c12res = l1.fundchannel(l2, FUND_CHANNEL_AMOUNT_SAT)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/shahana/workspace/lightning/contrib/pyln-testing/pyln/testing/utils.py", line 1194, in fundchannel
    assert False, f"txid {res['txid']} not found"
           ^^^^^
AssertionError: txid f160d78f39a5ccb96c1439333787b98f1a37c1bb3765b34c74047c8895f4e397 not found

And uv run make update-doc-examples-newchain is throwing:

15:10:44 - ERROR - Error in generating transactions examples: RPC call failed: method: fetchbip353, payload: {'address': 'send.some@satsto.me'}, error: {'code': -32700, 'data': None, 'message': 'failed to fetch payment instructions: HrnResolutionError("Multiple TXT records existed for the HRN, which is invalid")'}
15:10:44 - ERROR - RPC call failed: method: fetchbip353, payload: {'address': 'send.some@satsto.me'}, error: {'code': -32700, 'data': None, 'message': 'failed to fetch payment instructions: HrnResolutionError("Multiple TXT records existed for the HRN, which is invalid")'}
Traceback (most recent call last):
  File "/home/shahana/workspace/lightning/tests/autogenerate-rpc-examples.py", line 1444, in test_generate_examples
    c23_2, c23res2, c34_2, inv_l11, inv_l21, inv_l22, inv_l31, inv_l32, inv_l34 = generate_transactions_examples(l1, l2, l3, l4, l5, c25, bitcoind)
                                                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/shahana/workspace/lightning/tests/autogenerate-rpc-examples.py", line 463, in generate_transactions_examples
    update_example(node=l1, method='fetchbip353', params={'address': 'send.some@satsto.me'}, description=['Example of fetching BIP-353 payment details.'])
  File "/home/shahana/workspace/lightning/tests/autogenerate-rpc-examples.py", line 260, in update_example
    response = node.rpc.call(method, params)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/shahana/workspace/lightning/contrib/pyln-testing/pyln/testing/utils.py", line 811, in call
    res = LightningRpc.call(self, method, payload, cmdprefix, filter)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/shahana/workspace/lightning/contrib/pyln-client/pyln/client/lightning.py", line 428, in call
    raise RpcError(method, payload, resp['error'])
pyln.client.lightning.RpcError: RPC call failed: method: fetchbip353, payload: {'address': 'send.some@satsto.me'}, error: {'code': -32700, 'data': None, 'message': 'failed to fetch payment instructions: HrnResolutionError("Multiple TXT records existed for the HRN, which is invalid")'}