Merge JoinMarket-Org/joinmarket-clientserver#1738: CI: Bump Bitcoin C… #2085

Job	Run time
python 3.8, bitcoind 24.0.1 on macos-13	16m 4s
python 3.8, bitcoind 28.0 on macos-13	17m 18s
python 3.12, bitcoind 24.0.1 on macos-13	15m 3s
python 3.12, bitcoind 28.0 on macos-13	19m 3s
python 3.8, bitcoind 24.0.1 on ubuntu-latest	10m 8s
python 3.8, bitcoind 28.0 on ubuntu-latest	11m 38s
python 3.12, bitcoind 24.0.1 on ubuntu-latest	10m 10s
python 3.12, bitcoind 28.0 on ubuntu-latest	9m 49s
	1h 49m 13s

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