test: use MiniWallet for p2p_compactblocks.py #23873

This PR enables one more of the non-wallet functional tests (p2p_compactblocks.py) to be run even with the Bitcoin Core wallet disabled by using the MiniWallet instead, as proposed in #20078.

The wallet RPCs calls (getnewaddress/sendtoaddress) can easily be substituted by generating/sending to the MiniWallet's internal address instead (self.generate(self.wallet, ...)/self.wallet.send_self_transfer(...)).

ACK https://github.com/bitcoin/bitcoin/pull/23873/commits/d2efb66458e5ded38fe15216710de7036fe55244

ran test without wallet enabled, worked as expected :tada:

tACK d2efb66458e5ded38fe15216710de7036fe55244

worked without wallet!

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Conflicts

Reviewers, this pull request conflicts with the following ones:

• #23127 (tests: Use test framework utils where possible by vincenzopalazzo)

If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.