Use latest release of splunk-app-collection #1040

Job	Run time
run-test-suite (ubuntu-latest, 3.9, 9.4)	10m 20s
run-test-suite (ubuntu-latest, 3.13, latest)	10m 14s
run-test-suite (ubuntu-22.04, 3.7, 9.1)	9m 44s
run-test-suite (ubuntu-latest, 3.9, latest)	10m 44s
	41m 2s

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