feat(forwarder): add OTEL tracing (#222) #201

Job	Run time
permission_check	1s
fetch-regions	10s
tests / permission_check	1s
tests / prepare_matrix	2m 18s
tests / test-integration (tests/config.tftest.hcl)	2m 48s
tests / test-integration (tests/firehose.tftest.hcl)	7m 45s
tests / test-integration (tests/forwarder.tftest.hcl)	5m 30s
tests / test-integration (tests/logwriter.tftest.hcl)	6m 5s
tests / test-integration (tests/metricstream.tftest.hcl)	4m 3s
tests / test-integration (tests/simple.tftest.hcl)	36s
tests / test-integration (tests/stack.tftest.hcl)	7m 49s
tests / cleanup	13s
github-release	0s
aws-release	0s
	37m 19s

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