feat: add support for system indexes [ECS-1791] #5245

Job	Run time
detect-changed-packages	9s
discover-testcases	5s
basic-testcase / alpha	32s
basic-testcase / staging	35s
apicalls-testcase / staging	39s
apicalls-testcase / alpha	41s
basic-testcase / cloud	35s
calculator-crash-evals / cloud	32s
eval-level-expected-output / alpha	38s
calculator-evals / staging	3m 9s
calculator-evals / cloud	3m 4s
eval-input-overrides / cloud	30s
calculator-crash-evals / alpha	36s
calculator-crash-evals / staging	34s
apicalls-testcase / cloud	42s
eval-input-overrides / alpha	32s
csv-processor-evals / staging	34s
calculator-evals / alpha	3m 19s
eval-level-expected-output / staging	41s
csv-processor-evals / alpha	35s
csv-processor-evals / cloud	37s
eval-level-expected-output / cloud	36s
eval-input-overrides / staging	32s
eval-telemetry-testcase / alpha	2m 1s
target-output-key-evals / cloud	33s
eval-spans-testcase / alpha	1m 18s
target-output-key-evals / staging	31s
eval-telemetry-testcase / staging	1m 52s
langchain-cross / cloud	41s
langchain-cross / staging	43s
eval-telemetry-testcase / cloud	1m 37s
tools-evals / alpha	48s
langchain-cross / alpha	1m 5s
tools-evals / cloud	43s
target-output-key-evals / alpha	36s
eval-spans-testcase / cloud	1m 45s
tools-evals / staging	45s
eval-spans-testcase / staging	1m 26s
summarize-results	4s
	36m 55s

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