fix: package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-JSON5-3182856
- https://snyk.io/vuln/SNYK-JS-TAR-6476909
- https://snyk.io/vuln/SNYK-JS-WEBPACKDEVMIDDLEWARE-6476555

package.json

@@ -21,13 +21,13 @@
 	"dependencies": {
 		"@babel/core": "^7.8.3",
 		"@storybook/addon-knobs": "5.3.21",
-		"@storybook/vue": "5.3.21",
+		"@storybook/vue": "7.6.17",
 		"@tournant/communard": "^2.2.0",
 		"@vue/babel-preset-app": "^4.1.2",
 		"@vue/cli-plugin-babel": "^4.1.2",
 		"@vue/cli-plugin-eslint": "^4.1.2",
 		"@vue/cli-plugin-unit-jest": "^4.1.2",
-		"@vue/cli-service": "^4.1.2",
+		"@vue/cli-service": "^5.0.1",
 		"@vue/eslint-config-standard": "^5.1.0",
 		"@vue/test-utils": "1.0.0-beta.29",
 		"babel-eslint": "^10.0.1",
@@ -41,9 +41,9 @@
 		"eslint-plugin-vue": "^6.0.1",
 		"husky": "^4.0.10",
 		"jest": "^24.9.0",
-		"lerna": "^3.18.0",
+		"lerna": "^6.5.0",
 		"lint-staged": "^9.0.2",
-		"node-sass": "^4.13.0",
+		"node-sass": "^5.0.0",
 		"prettier": "^1.17.0",
 		"rollup": "^1.27.8",
 		"rollup-plugin-alias": "^2.0.0",