Pick up the Windows BSD tar temporary-file isolation fix from
actions/toolkit#2497.
Update the lockfile, license records, and generated action bundles.
* Migrate to ESM and upgrade dependencies
* Remove unused tsconfig.eslint.json
* bump version to 7.0.0 in package.json and package-lock.json
* Add ESM migration note to README for V7
* Remove unnecessary devDependencies: ts-node, @types/jest
* npm audit fix
* Update README with ESM migration details
Clarified migration details to ESM for action compatibility.
* Downgrade @types/node to ^24, clean up tsconfig and README.
