Upgrade all dependencies at once (#24)

Author: mraerino

package-lock.json

@@ -36,17 +36,17 @@
     "@iarna/toml": "^2.2.5"
   },
   "devDependencies": {
-    "@netlify/build": "^4.7.2",
-    "ava": "^3.13.0",
-    "cross-env": "^7.0.2",
-    "eslint": "^7.10.0",
-    "eslint-config-prettier": "^6.12.0",
-    "eslint-plugin-import": "^2.22.1",
+    "@netlify/build": "^15.11.2",
+    "ava": "^3.15.0",
+    "cross-env": "^7.0.3",
+    "eslint": "^7.30.0",
+    "eslint-config-prettier": "^8.3.0",
+    "eslint-plugin-import": "^2.23.4",
     "eslint-plugin-node": "^11.1.0",
-    "eslint-plugin-prettier": "^3.1.4",
-    "execa": "^4.0.3",
-    "netlify-cli": "^2.65.0",
-    "prettier": "^2.1.2",
-    "release-it": "^14.0.3"
+    "eslint-plugin-prettier": "^3.4.0",
+    "execa": "^5.1.1",
+    "netlify-cli": "^4.2.1",
+    "prettier": "^2.3.2",
+    "release-it": "^14.10.0"
   }
 }