Update eslint-plugin-vue to 5.1.0

[lbiedinger]

PR to update the eslint-plugin-vue via:
bin/yarn upgrade eslint-plugin-vue

Where 'vue/script-indent' and 'indent' rules are set this upgrade will fix issues with mutually exclusive errors being raised such as:

Expected indentation of 2 spaces but found 0. New
Found in components/example.js by eslint

Expected indentation of 0 spaces but found 2 spaces. Fixed
Found in components/example.js by eslint