minor #862 Fix typos in test/Github/Tests/Api/RepoTest.php (pgrimaud)

This PR was merged into the 2.13.x-dev branch.

Discussion
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Hello,

This PR will fix : 

- 2 typos in `test/Github/Tests/Api/RepoTest.php`



Cheers! 🤖

Commits
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d8603c2 Fix typos

test/Github/Tests/Api/RepoTest.php

@@ -378,10 +378,10 @@ public function shouldNotDelete()
         $api = $this->getApiMock();
         $api->expects($this->once())
             ->method('delete')
-            ->with('/repos/l3l0Repo/uknown-repo')
+            ->with('/repos/l3l0Repo/unknown-repo')
             ->will($this->returnValue($expectedArray));
 
-        $this->assertEquals($expectedArray, $api->remove('l3l0Repo', 'uknown-repo'));
+        $this->assertEquals($expectedArray, $api->remove('l3l0Repo', 'unknown-repo'));
     }
 
     /**