fix: remove a few old references to 'next lint' (#82800)

Author: bgub

docs/01-app/01-getting-started/01-installation.mdx

@@ -66,7 +66,7 @@ Then, add the following scripts to your `package.json` file:
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint"
+    "lint": "eslint"
   }
 }
 ```
@@ -76,7 +76,7 @@ These scripts refer to the different stages of developing an application:
 - `next dev`: Starts the development server.
 - `next build`: Builds the application for production.
 - `next start`: Starts the production server.
-- `next lint`: Runs ESLint.
+- `eslint`: Runs ESLint.
 
 <AppOnly>
 

docs/01-app/02-guides/testing/cypress.mdx

@@ -42,7 +42,7 @@ Add the Cypress `open` command to the `package.json` scripts field:
     "dev": "next dev",
     "build": "next build",
     "start": "next start",
-    "lint": "next lint",
+    "lint": "eslint",
     "cypress:open": "cypress open"
   }
 }