chore(deps): bump actions/checkout from 3 to 4 #279

Job	Run time
E2E tests / awslogs / ubuntu-latest / Go 1.20	3m 31s
Unit Tests / ubuntu-latest / Go 1.20	1m 0s
E2E tests / fluentd / ubuntu-latest / Go 1.20	1m 32s
E2E tests / awslogs / ubuntu-latest / Go 1.21	3m 44s
Unit Tests / windows-latest / Go 1.20	3m 4s
go-linter	29s
E2E tests / fluentd / ubuntu-latest / Go 1.21	1m 35s
Unit Tests / ubuntu-latest / Go 1.21	1m 1s
Unit Tests / windows-latest / Go 1.21	4m 2s
E2E tests / splunk / ubuntu-latest / Go 1.20	2m 51s
go-mod-tidy-check	11s
E2E tests / splunk / ubuntu-latest / Go 1.21	2m 55s
mdlint	19s
	26m 14s

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