Fix windows actions (python-telegram-bot#1605)

* Stop testing with ujson

* Fix timing issue with test_delete_message

* ignore pip deprecation warning. hopefully it will fix windows+py2.7

* telegram replies to deleteing old messages are not consistent

.github/workflows/test.yml

@@ -33,11 +33,10 @@ jobs:
           python-version: ${{ matrix.python-version }}
       - name: Install dependencies
         run: |
-          python -m pip install --upgrade pip
-          pip install -U codecov pytest-cov
-          pip install ujson
-          pip install -r requirements.txt
-          pip install -r requirements-dev.txt
+          python -W ignore -m pip install --upgrade pip
+          python -W ignore -m pip install -U codecov pytest-cov
+          python -W ignore -m pip install -r requirements.txt
+          python -W ignore -m pip install -r requirements-dev.txt
 
       - name: Test with pytest
         run: |

tests/test_bot.py

@@ -114,13 +114,14 @@ def test_forward_message(self, bot, chat_id, message):
     @pytest.mark.timeout(10)
     def test_delete_message(self, bot, chat_id):
         message = bot.send_message(chat_id, text='will be deleted')
+        time.sleep(2)
 
         assert bot.delete_message(chat_id=chat_id, message_id=message.message_id) is True
 
     @flaky(3, 1)
     @pytest.mark.timeout(10)
     def test_delete_message_old_message(self, bot, chat_id):
-        with pytest.raises(TelegramError, match='Message to delete not found'):
+        with pytest.raises(BadRequest):
             # Considering that the first message is old enough
             bot.delete_message(chat_id=chat_id, message_id=1)