Rename standalone to local #360

Job	Run time
amd64 / build-stellar-core	40s
amd64 / build-stellar-horizon	2m 40s
amd64 / build-stellar-friendbot	55s
amd64 / build-stellar-soroban-rpc	1m 32s
arm64 / build-stellar-core	23s
arm64 / build-stellar-friendbot	2m 45s
arm64 / build-stellar-horizon	8m 41s
arm64 / build-stellar-soroban-rpc	49s
amd64 / build	4m 24s
amd64 / test (testnet)	1m 17s
amd64 / push-pr	47s
amd64 / test (pubnet)	1m 20s
amd64 / test (local)	1m 8s
amd64 / test (local, --enable-horizon-captive-core)	1m 9s
arm64 / build	1s
arm64 / push-pr	1s
arm64 / test	1s
arm64 / push-release	1s
amd64 / push-release	1s
manifest	1s
complete	1s
	28m 37s

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