Update Spire version and make Dockerfile support multi-arch build #1040

Job	Run time
excludeFmtErrorf / exclude-fmt-errorf	9s
docker-build-and-test / push	2m 3s
excludereplace / excludereplace	4s
checkgomod / checkgomod	22s
gogenerate / gogenerate	23s
golangci-lint / golangci-lint	19s
restrictNSMDeps / restrict-nsm-deps	6s
shellcheck / shellcheck	20s
yamllint / yamllint	16s
	4m 2s

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