[10.x] Adds Tappable and Conditionable to Relation class (#50124)

* [10.x] Fixes proxying conditionable and tappable to relation

* [10.x] Fixes proxying conditionable and tappable to relation

* Update Relation.php

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Co-authored-by: Taylor Otwell <taylor@laravel.com>

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

@@ -10,12 +10,14 @@
 use Illuminate\Database\Eloquent\ModelNotFoundException;
 use Illuminate\Database\MultipleRecordsFoundException;
 use Illuminate\Database\Query\Expression;
+use Illuminate\Support\Traits\Conditionable;
+use Illuminate\Support\Traits\Tappable;
 use Illuminate\Support\Traits\ForwardsCalls;
 use Illuminate\Support\Traits\Macroable;
 
 abstract class Relation implements BuilderContract
 {
-    use ForwardsCalls, Macroable {
+    use Conditionable, ForwardsCalls, Macroable, Tappable {
         Macroable::__call as macroCall;
     }