Add different shortcut methods for Text.as_kwargs() (#1657)

* Add different shortcut methods for Text.as_kwargs()

New methods:
- as_caption_kwargs()
- as_poll_question_kwargs()
- as_poll_explanation_kwargs()
- as_gift_text_kwargs()

* Add changelog

* Fix not passing linter checks

tests/test_utils/test_formatting.py

@@ -172,6 +172,34 @@ class TestNode:
         assert "parse_mode" not in result
         assert "custom_parse_mode" in result
 
+    def test_as_caption_kwargs(self):
+        node = Text("Hello, ", Bold("World"), "!")
+        result = node.as_caption_kwargs()
+        assert "caption" in result
+        assert "caption_entities" in result
+        assert "parse_mode" in result
+
+    def test_as_poll_question_kwargs(self):
+        node = Text("Hello, ", Bold("World"), "!")
+        result = node.as_poll_question_kwargs()
+        assert "question" in result
+        assert "question_entities" in result
+        assert "question_parse_mode" in result
+
+    def test_as_poll_explanation_kwargs(self):
+        node = Text("Hello, ", Bold("World"), "!")
+        result = node.as_poll_explanation_kwargs()
+        assert "explanation" in result
+        assert "explanation_entities" in result
+        assert "explanation_parse_mode" in result
+
+    def test_as_as_gift_text_kwargs_kwargs(self):
+        node = Text("Hello, ", Bold("World"), "!")
+        result = node.as_gift_text_kwargs()
+        assert "text" in result
+        assert "text_entities" in result
+        assert "text_parse_mode" in result
+
     def test_as_html(self):
         node = Text("Hello, ", Bold("World"), "!")
         assert node.as_html() == "Hello, <b>World</b>!"