fix: require splunk-sdk at least 2.0.2 #903

Job	Run time
fossa-scan	50s
compliance-copyrights	25s
meta	5s
pre-commit	15s
test-unit 3.7	2m 3s
test-unit 3.8	1m 34s
test-unit 3.9	1m 34s
test-unit 3.10	1m 38s
test-unit 3.11	1m 31s
test-unit 3.12	1m 42s
test-unit 3.13	1m 58s
semgrep / sast-scan	17s
test-splunk (9.3.1, 0b8d769cb912, true, false)	3m 30s
test-splunk (9.2.3, 282efff6aa8b, false, false)	3m 22s
test-splunk (9.1.6, a28f08fac354, false, true)	3m 24s
publish	1m 9s
	25m 17s

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