chore(typescript-estree): fixed no-unnecessary-condition complaints#7835

JoshuaKGoldberg merged 5 commits intotypescript-eslint:maintypescript-eslint/typescript-eslint:mainfrom

JoshuaKGoldberg:lint-enable-no-unnecessary-condition-typescript-estreeJoshuaKGoldberg/typescript-eslint:lint-enable-no-unnecessary-condition-typescript-estreeCopy head branch name to clipboard