Bump go.opentelemetry.io/otel/sdk from 1.13.0 to 1.26.0 #805

Job	Run time
setup-environment	28s
lint	1m 29s
checks	32s
test-coverage	48s
cross-build-collector (darwin, amd64)	15s
cross-build-collector (darwin, arm64)	14s
unittest (1.20)	33s
unittest (1.19)	34s
cross-build-collector (linux, 386)	15s
cross-build-collector (linux, amd64)	23s
cross-build-collector (linux, arm64)	17s
cross-build-collector (linux, ppc64le)	20s
cross-build-collector (linux, arm)	20s
cross-build-collector (windows, 386)	17s
cross-build-collector (windows, amd64)	16s
	7m 1s

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