chore(deps): update rust crate opentelemetry_sdk to v0.21.2 #30

Job	Run time
build-all-features	0s
build-linux-master	0s
build-freebsd	32m 59s
build-linux-pr	0s
build-linux-stable	0s
build-macos (x86_64-apple-darwin, dev)	18m 0s
build-windows-pr	0s
build-windows-master	0s
build-macos (x86_64-apple-darwin, release)	7m 17s
build-macos (aarch64-apple-darwin, dev)	4m 21s
build-macos (aarch64-apple-darwin, release)	11m 57s
build-windows-stable	0s
check	1m 34s
doc	0s
conclusion	1s
	1h 16m 9s

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