Update actions/checkout action to v6 - autoclosed #326

Job	Run time
Scorecards / Security Scorecards	26s
Dependency Review / Scan dependencies for license compliance	14s
Trivy / Filesystem	36s
Semgrep Scan / semgrep	46s
Sonatype Nancy / Sonatype Nancy	3m 22s
CodeQL (go) / CodeQL Analysis	1m 10s
FOSSA	0s
Trivy / Container	0s
	6m 34s

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