fs: use w flag for writeFileSync with utf8 encoding when flag not specified#50990

nodejs-github-bot merged 2 commits intonodejs:mainnodejs/node:mainfrom

MuriloKakazu:fix/default-flag-fs-write-file-syncMuriloKakazu/node:fix/default-flag-fs-write-file-syncCopy head branch name to clipboard