[12.x] Add $limit Parameter to latest() and oldest() Methods

[theHocineSaad]

This PR introduces a new $limit parameter to the latest() and oldest() methods, allowing developers to limit results without chaining take().

---

Before

Previously, limiting results required chaining take() after latest() or oldest():

// Using Eloquent
User::latest()->take(10)->get();

// Using Query Builder
DB::table('users')->latest()->take(10)->get();

// Oldest examples
User::oldest()->take(10)->get();
DB::table('users')->oldest()->take(10)->get();

---

After

Now, you can pass the limit directly as an argument to latest() or oldest().

// Specify both column and limit
User::latest('updated_at', 10)->get();
DB::table('users')->latest('updated_at', 10)->get();

User::oldest('updated_at', 10)->get();
DB::table('users')->oldest('updated_at', 10)->get();

You can also use named arguments for clarity:

User::latest(limit: 10)->get();
DB::table('users')->latest(limit: 10)->get();

User::oldest(limit: 10)->get();
DB::table('users')->oldest(limit: 10)->get();

---

Shortcut

If you don’t need to change the default column (created_at), you can pass only the limit:

// Defaults to ordering by 'created_at'
User::latest(10)->get();
DB::table('users')->latest(10)->get();

User::oldest(10)->get();
DB::table('users')->oldest(10)->get();

[browner12]

We have amazing composability with chaining, this is not needed.

[taylorotwell]

Thanks for your pull request to Laravel!

Unfortunately, I'm going to delay merging this code for now. To preserve our ability to adequately maintain the framework, we need to be very careful regarding the amount of code we include.

If applicable, please consider releasing your code as a package so that the community can still take advantage of your contributions!