IMP: Cli side of get_keys is sorted list now (#385)

* Cli side of get_keys is sorted list now

* test key sorting

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Co-authored-by: Colin Wood <woodcolin38@gmail.com>

Author: Oddant1

q2cli/tests/test_tools.py

@@ -587,12 +587,12 @@ def test_cache_remove(self):
         self.assertFalse('key' in self.cache.get_keys())
 
     def test_cache_remove_multiple(self):
-        self.cache.save(self.art1, 'key1')
-        self.cache.save(self.art1, 'key2')
         self.cache.save(self.art1, 'key3')
+        self.cache.save(self.art1, 'key2')
+        self.cache.save(self.art1, 'key1')
 
         keys = self.cache.get_keys()
-        self.assertEqual(set(['key1', 'key2', 'key3']), keys)
+        self.assertEqual(['key1', 'key2', 'key3'], keys)
 
         result = self.runner.invoke(
             tools,