:book: Add security guidelines for Cluster API users#12814

nayuta-ai wants to merge 2 commits intokubernetes-sigs:mainkubernetes-sigs/cluster-api:mainfrom

nayuta-ai:add-doc-self-assessment-security-guidelinenayuta-ai/cluster-api:add-doc-self-assessment-security-guidelineCopy head branch name to clipboard