chore(deps): update oxsecurity/megalinter action to v8 #1552

Job	Run time
clear-cache	6s
upload action	10s
init test package (18)	8s
init test package (20)	9s
test action (18, windows-latest) / initial run	29s
test action (20, ubuntu-latest) / initial run	14s
test action (18, macos-latest) / initial run	16s
test action (18, ubuntu-latest) / initial run	29s
test action (20, windows-latest) / initial run	43s
test action (20, ubuntu-latest) / cache run	17s
test action (18, macos-latest) / cache run	12s
test action (18, windows-latest) / cache run	18s
test action (18, ubuntu-latest) / cache run	13s
test action (18, macos-latest) / output results	4s
test action (20, ubuntu-latest) / output results	8s
test action (20, windows-latest) / cache run	32s
test action (20, macos-latest) / initial run	19s
test action (18, ubuntu-latest) / output results	7s
test action (18, windows-latest) / output results	2s
test action (20, macos-latest) / cache run	13s
test action (20, windows-latest) / output results	9s
test action (20, macos-latest) / output results	2s
	5m 20s

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