Bring in example that just spends from a script in L2 and closes #6854

Job	Run time
Benchmarks (hydra-node, tx-cost, --output-directory $(pwd)/../benchmarks)	2m 9s
Build specification using nix	1m 41s
Benchmarks (hydra-node, micro, -o $(pwd)/../benchmarks/ledger-bench.html)	1m 36s
Build & test (hydra-plutus)	1m 33s
Benchmarks (hydra-cluster, bench-e2e, datasets datasets/1-node.json datasets/3-nodes.json --outpu...	5m 20s
Build & test (hydra-tui)	4m 10s
Build haddock using nix	2m 37s
Build & test (hydra-node)	6m 43s
Build & test (hydra-tx)	1m 57s
nix flake check	5m 9s
Compute cost differences	3m 22s
Build & test (hydra-cluster)	12m 38s
Publish benchmark results	6s
Publish test results	0s
Documentation	0s
	49m 1s

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