[Dev Deps] update eslint, @ljharb/eslint-config, acorn, zuul

Author: ljharb

.eslintrc

@@ -26,4 +26,13 @@
 		"no-script-url": 1,
 		"sort-keys": 0,
 	},
+
+	"overrides": [
+		{
+			"files": "test.js",
+			"rules": {
+				"no-sequences": 1,
+			},
+		},
+	],
 }

package.json

@@ -14,13 +14,13 @@
     "analyze"
   ],
   "devDependencies": {
-    "@ljharb/eslint-config": "^17.5.0",
-    "acorn": "^8.0.5",
+    "@ljharb/eslint-config": "^17.6.0",
+    "acorn": "^8.2.4",
     "assert": "1.1.1",
-    "eslint": "^7.18.0",
+    "eslint": "^7.26.0",
     "mocha": "^3.5.3",
     "nyc": "^10.3.2",
-    "zuul": "^3.3.0"
+    "zuul": "^3.12.0"
   },
   "scripts": {
     "lint": "eslint .",