Prepare for Sway-Standards `v0.6.1` release #517

Job	Run time
build-sway-standards	27s
build-examples (examples/src3-mint-burn)	37s
build-examples (examples/src5-ownership)	27s
build-examples (examples/src6-vault)	29s
build-examples (examples/src7-metadata)	30s
build-examples (examples/src11-security-information)	30s
build-examples (examples/src12-contract-factory)	29s
build-examples (examples/src14-simple-proxy)	27s
build-examples (examples/src20-native-asset)	26s
	4m 22s

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