fix: resolve OpenTelemetry tracing architecture issues #3214

Job	Run time
discover-testcases	4s
calculator-evals / alpha	2m 46s
basic-testcase / staging	32s
apicalls-testcase / staging	43s
apicalls-testcase / cloud	47s
basic-testcase / cloud	31s
apicalls-testcase / alpha	53s
calculator-evals / cloud	2m 53s
calculator-crash-evals / alpha	53s
calculator-crash-evals / cloud	55s
basic-testcase / alpha	35s
calculator-crash-evals / staging	54s
calculator-evals / staging	2m 56s
eval-spans-testcase / staging	1m 51s
eval-spans-testcase / alpha	1m 43s
langchain-cross / alpha	48s
tools-evals / alpha	1m 54s
eval-input-overrides / alpha	30s
tools-evals / staging	2m 0s
langchain-cross / staging	39s
eval-input-overrides / staging	29s
eval-input-overrides / cloud	31s
eval-telemetry-testcase / alpha	2m 13s
langchain-cross / cloud	42s
csv-processor-evals / staging	35s
csv-processor-evals / cloud	31s
eval-telemetry-testcase / cloud	2m 23s
tools-evals / cloud	2m 8s
csv-processor-evals / alpha	35s
eval-telemetry-testcase / staging	2m 22s
eval-spans-testcase / cloud	1m 53s
summarize-results	3s
	39m 12s

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