Update packages

Refs: #20

package.json

@@ -10,33 +10,33 @@
     "@material-ui/styles": "^4.10.0",
     "@svgr/webpack": "^5.4.0",
     "classnames": "^2.2.6",
-    "gatsby": "^2.24.47",
-    "gatsby-cli": "^2.12.87",
-    "gatsby-image": "^2.4.16",
-    "gatsby-plugin-manifest": "^2.4.23",
+    "gatsby": "^2.24.65",
+    "gatsby-cli": "^2.12.100",
+    "gatsby-image": "^2.4.19",
+    "gatsby-plugin-manifest": "^2.4.31",
     "gatsby-plugin-material-ui": "^2.1.10",
-    "gatsby-plugin-offline": "^3.2.23",
-    "gatsby-plugin-react-helmet": "^3.3.10",
-    "gatsby-plugin-sharp": "^2.6.27",
-    "gatsby-source-filesystem": "^2.3.24",
-    "gatsby-transformer-sharp": "^2.5.13",
+    "gatsby-plugin-offline": "^3.2.28",
+    "gatsby-plugin-react-helmet": "^3.3.11",
+    "gatsby-plugin-sharp": "^2.6.36",
+    "gatsby-source-filesystem": "^2.3.30",
+    "gatsby-transformer-sharp": "^2.5.15",
     "jquery": "^3.5.1",
     "prop-types": "^15.7.2",
     "react": "^16.12.0",
     "react-countdown": "^2.2.1",
     "react-dom": "^16.12.0",
     "react-helmet": "^6.1.0",
-    "react-slick": "^0.27.8",
+    "react-slick": "^0.27.11",
     "slick-carousel": "^1.8.1",
     "svgo": "^1.3.0",
     "svgo-loader": "^2.2.1"
   },
   "devDependencies": {
-    "eslint": "^7.7.0",
-    "eslint-plugin-react": "^7.20.6",
-    "eslint-plugin-react-hooks": "^4.0.8",
-    "husky": "^4.2.5",
-    "prettier": "2.0.5"
+    "eslint": "^7.9.0",
+    "eslint-plugin-react": "^7.21.1",
+    "eslint-plugin-react-hooks": "^4.1.2",
+    "husky": "^4.3.0",
+    "prettier": "^2.1.2"
   },
   "engines": {
     "node": "14"