test: modify lint command to only process src dir (#236)

.eslintrc.json

@@ -1,6 +1,5 @@
 {
   "root": true,
-  "ignorePatterns": ["dist"],
   "extends": ["eslint:recommended"],
   "overrides": [
     {

package.json

@@ -4,7 +4,7 @@
   "scripts": {
     "build": "ncc build src/index.ts",
     "format": "prettier --write --cache . !dist !README.md",
-    "lint": "eslint --ignore-path .gitignore .",
+    "lint": "eslint src",
     "test": "jest"
   },
   "dependencies": {