ktlo(ddtrace,contrib): don't use hardcoded FS paths on integration/te… #1490

Job	Run time
multios-unit-tests (macos-latest, 1.22) / test-multi-os	12m 40s
multios-unit-tests (ubuntu-latest, 1.23) / test-multi-os	11m 38s
multios-unit-tests (ubuntu-latest, 1.22) / test-multi-os	7m 29s
multios-unit-tests (macos-latest, 1.23) / test-multi-os	11m 40s
multios-unit-tests (windows-latest, 1.22) / test-multi-os	18m 18s
multios-unit-tests (windows-latest, 1.23) / test-multi-os	17m 25s
unit-integration-tests (1.22) / copyright	16s
unit-integration-tests (1.22) / lint	4m 16s
unit-integration-tests (1.22) / test-contrib	5m 45s
unit-integration-tests (1.22) / test-core	7m 56s
unit-integration-tests (1.23) / copyright	14s
unit-integration-tests (1.23) / lint	2m 45s
unit-integration-tests (1.23) / test-contrib	5m 50s
unit-integration-tests (1.23) / test-core	7m 28s
	1h 53m 40s

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