[Snyk] Security upgrade python from latest to 3-slim#3

snyk-bot wants to merge 1 commit intomastermarksarka/checkov:masterfrom

snyk-fix-3a97c2bd775a4b4f3497fa30b5d9cc9amarksarka/checkov:snyk-fix-3a97c2bd775a4b4f3497fa30b5d9cc9aCopy head branch name to clipboard