chore: remove `ci/automation.json` file, used by Dockerfile.ledger #104

Job	Run time
Check no_std	18s
Build Examples (example_cli)	25s
Build and test (stable, true, --no-default-features)	2m 56s
Build Examples (example_bitcoind_rpc_polling)	31s
Check WASM	55s
Build and test (stable, true, --all-features)	3m 15s
Rust fmt	13s
Build Examples (example_electrum)	58s
Build and test (1.63.0, --no-default-features)	3m 58s
Build Examples (example_esplora)	55s
prepare	3s
Build and test (1.63.0, --all-features)	4m 17s
Build Examples (wallet_electrum)	52s
Build Examples (wallet_esplora_async)	1m 0s
Build Examples (wallet_esplora_blocking)	56s
Build Examples (wallet_rpc)	27s
clippy_check	27s
	22m 26s

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