Merge bitcoindevkit/bdk-cli#197: Update bdk_wallet dependency to 2.0.… #796

Job	Run time
Rust fmt	16s
Build and test (stable, --features default)	1m 12s
Build and test (stable, --no-default-features)	1m 9s
Build and test (stable, --all-features)	2m 9s
Build and test (1.75.0, --features default)	1m 17s
Build and test (1.75.0, --all-features)	2m 6s
Build and test (1.75.0, --no-default-features)	1m 14s
	9m 23s

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