fix: list semver as a dependency

[merceyz]

Introduced in #841

Moves semver from devDependencies to dependencies since it's needed by two rules.

eslint-plugin-vue/lib/rules/no-unsupported-features.js

Line 7 in 0c80259

const { Range } = require('semver')

eslint-plugin-vue/lib/rules/syntaxes/v-bind-prop-modifier-shorthand.js

Line 6 in 0c80259

const { Range } = require('semver')

Ref yarnpkg/berry#654

[ota-meshi]

Thank you!