Rename :soroban-dev to :future #598

Job	Run time
arm64 / build-stellar-friendbot	4m 28s
arm64 / build-stellar-core	22s
arm64 / build-stellar-horizon	7m 50s
amd64 / build-stellar-core	41s
amd64 / build-stellar-horizon	2m 22s
amd64 / build-stellar-friendbot	48s
arm64 / build-rs-stellar-xdr	2m 54s
arm64 / build-stellar-soroban-rpc	1m 58s
amd64 / build-stellar-soroban-rpc	3m 2s
amd64 / build-rs-stellar-xdr	2m 52s
amd64 / build	4m 13s
amd64 / test (pubnet)	1m 35s
amd64 / test (local)	1m 37s
amd64 / test (local, --enable-soroban-rpc)	1m 47s
amd64 / push-pr	46s
arm64 / build	7m 26s
amd64 / push-release	0s
arm64 / test (pubnet)	1m 12s
arm64 / push-pr	40s
arm64 / test (local)	1m 43s
arm64 / test (local, --enable-soroban-rpc)	2m 40s
arm64 / push-release	0s
manifest / push	8s
complete	1s
	51m 5s

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