Bump flat and @vue/cli-plugin-unit-mocha in /nature-manager#10

dependabot[bot] wants to merge 1 commit intomasterllxxbb/Nature:masterfrom

dependabot/npm_and_yarn/nature-manager/flat-and-vue/cli-plugin-unit-mocha-5.0.2llxxbb/Nature:dependabot/npm_and_yarn/nature-manager/flat-and-vue/cli-plugin-unit-mocha-5.0.2Copy head branch name to clipboard