feat: upgrade all deps (#61)

Author: irfan-maulana-tkp

package.json

@@ -8,32 +8,32 @@
     "lint:fix": "eslint --fix --ext .js,.vue --ignore-path .gitignore ."
   },
   "dependencies": {
-    "@gridsome/plugin-google-analytics": "0.1.0",
-    "@gridsome/plugin-sitemap": "0.2.3",
-    "@gridsome/remark-prismjs": "0.3.0",
+    "@gridsome/plugin-google-analytics": "0.1.2",
+    "@gridsome/plugin-sitemap": "0.4.0",
+    "@gridsome/remark-prismjs": "0.4.0",
     "@gridsome/source-filesystem": "0.6.2",
-    "@gridsome/transformer-remark": "0.4.0",
-    "gridsome": "0.7.9",
+    "@gridsome/transformer-remark": "0.6.3",
+    "gridsome": "0.7.21",
     "gridsome-plugin-feed": "^1.0.2",
-    "gridsome-plugin-pwa": "^0.0.9"
+    "gridsome-plugin-pwa": "^0.0.18"
   },
   "devDependencies": {
-    "babel-eslint": "^10.0.3",
-    "eslint": "^6.6.0",
-    "eslint-config-prettier": "^6.5.0",
-    "eslint-config-standard": "^14.1.0",
-    "eslint-plugin-import": "^2.18.2",
-    "eslint-plugin-markdown": "^1.0.1",
-    "eslint-plugin-node": "^10.0.0",
-    "eslint-plugin-prettier": "^3.1.1",
+    "babel-eslint": "^10.1.0",
+    "eslint": "^7.10.0",
+    "eslint-config-prettier": "^6.12.0",
+    "eslint-config-standard": "^14.1.1",
+    "eslint-plugin-import": "^2.22.1",
+    "eslint-plugin-markdown": "^1.0.2",
+    "eslint-plugin-node": "^11.1.0",
+    "eslint-plugin-prettier": "^3.1.4",
     "eslint-plugin-promise": "^4.2.1",
-    "eslint-plugin-vue": "^5.2.3",
-    "husky": "^3.0.9",
-    "lint-staged": "^9.4.2",
-    "node-sass": "4.13.1",
-    "prettier": "^1.18.2",
-    "sass-loader": "8.0.0",
-    "slugify": "^1.3.6"
+    "eslint-plugin-vue": "^7.0.0",
+    "husky": "^4.3.0",
+    "lint-staged": "^10.4.0",
+    "node-sass": "4.14.1",
+    "prettier": "^2.1.2",
+    "sass-loader": "10.0.2",
+    "slugify": "^1.4.5"
   },
   "husky": {
     "hooks": {