Update Spire version and make Dockerfile support multi-arch build #1548

Job	Run time
excludeFmtErrorf / exclude-fmt-errorf	2s
docker-build-and-test / push	1m 40s
gogenerate / gogenerate	11s
checkgomod / checkgomod	22s
golangci-lint / golangci-lint	18s
restrictNSMDeps / restrict-nsm-deps	3s
shellcheck / shellcheck	15s
yamllint / yamllint	10s
excludereplace / excludereplace	3s
	3m 4s

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