chore: bump opentelemetry libraries to version v1.21.0 and collector … #1123

Job	Run time
Generate backend architecture graph	1m 15s
build web	43s
prepare-go (linux)	14m 2s
prepare-go (windows)	10m 11s
prepare-go (darwin)	6m 35s
release	2m 9s
Deploy Beta	43s
	35m 38s

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