chore: edit package.json license to match SPDX id
See [NPM package.json spec for
licenses](https://docs.npmjs.com/files/package.json#license) and [SPDX license
IDs](https://spdx.org/licenses/)
X-ref: https://github.com/apache/cordova-plugin-device/pull/48
Project:
Repository: cordova-plugin-vibration
Updated Branches:
refs/heads/master 71f03ef56 -> 2475bfaa4
chore: edit package.json license to match SPDX id
See [NPM package.json spec for
licenses](https://docs.npmjs.com/files/package.json#license) and [SPDX license
IDs](https://spdx.org/licenses/)