Change paginage() method return types to \Illuminate\Pagination\LengthAwarePaginator (#54826)

Return types of all the subsequent calls are returning this, which in turn implements `\Illuminate\Contracts\Pagination\LengthAwarePaginator`

Related to bmewburn/vscode-intelephense#2912. Which I in turn had issues with locally where calling methods to the returned data from `->paginage()` did not auto complete.

Hope this is possible to backport to 11.x too if this is a change that is okay.

Author: carestad

src/Illuminate/Database/Eloquent/Builder.php

@@ -1018,7 +1018,7 @@ public function pluck($column, $key = null)
      * @param  string  $pageName
      * @param  int|null  $page
      * @param  \Closure|int|null  $total
-     * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
+     * @return \Illuminate\Pagination\LengthAwarePaginator
      *
      * @throws \InvalidArgumentException
      */

src/Illuminate/Database/Eloquent/Relations/BelongsToMany.php

@@ -938,7 +938,7 @@ protected function aliasedPivotColumns()
      * @param  array  $columns
      * @param  string  $pageName
      * @param  int|null  $page
-     * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
+     * @return \Illuminate\Pagination\LengthAwarePaginator
      */
     public function paginate($perPage = null, $columns = ['*'], $pageName = 'page', $page = null)
     {

src/Illuminate/Database/Eloquent/Relations/HasOneOrManyThrough.php

@@ -468,7 +468,7 @@ public function get($columns = ['*'])
      * @param  array  $columns
      * @param  string  $pageName
      * @param  int  $page
-     * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
+     * @return \Illuminate\Pagination\LengthAwarePaginator
      */
     public function paginate($perPage = null, $columns = ['*'], $pageName = 'page', $page = null)
     {

src/Illuminate/Database/Query/Builder.php

@@ -3142,7 +3142,7 @@ protected function withoutGroupLimitKeys($items)
      * @param  string  $pageName
      * @param  int|null  $page
      * @param  \Closure|int|null  $total
-     * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
+     * @return \Illuminate\Pagination\LengthAwarePaginator
      */
     public function paginate($perPage = 15, $columns = ['*'], $pageName = 'page', $page = null, $total = null)
     {