[Dev Deps] update eslint

Author: ljharb

package.json

@@ -7,7 +7,7 @@
     "@ljharb/eslint-config": "^17.6.0",
     "aud": "^1.1.5",
     "core-js": "^2.6.12",
-    "eslint": "^7.26.0",
+    "eslint": "^7.30.0",
     "for-each": "^0.3.3",
     "functions-have-names": "^1.2.2",
     "make-arrow-function": "^1.2.0",