78: Pin sybil to latest version 1.2.0 r=aragilar a=pyup-bot


This PR pins [sybil](https://pypi.org/project/sybil) to the latest release **1.2.0**.



<details>
  <summary>Changelog</summary>
  
  
   ### 1.2.0
   ```
   -------------------

- Only compile code in :ref:`codeblocks &lt;codeblock-parser&gt;` at evaluation time,
  giving :ref:`skip &lt;skip-parser&gt;` a chance to skip code blocks that won&#39;t
  compile on a particular version of Python.
   ```
   
  
  
   ### 1.1.0
   ```
   -------------------

- Move to CircleCI__ and Carthorse__.

  __ https://circleci.com/gh/cjw296/sybil
  __ https://github.com/cjw296/carthorse

- Add warning about the limitations of
  :attr:`~sybil.parsers.doctest.FIX_BYTE_UNICODE_REPR`.

- Support explicit filenames to include and patterns to exclude
  when instantiating a :class:`~sybil.Sybil`.

- Add the :ref:`skip &lt;skip-parser&gt;` parser.
   ```
   
  
  
   ### 1.0.9
   ```
   ------------------

- Fix for pytest 3.7+.
   ```
   
  
  
   ### 1.0.8
   ```
   ------------------

- Changes only to unit tests to support fixes in the latest release of pytest.
   ```
   
  
  
   ### 1.0.7
   ```
   -----------------------

- Literal tabs may no longer be included in text that is parsed by the
  :class:`~sybil.parsers.doctest.DocTestParser`. Previously, tabs were
  expanded which could cause unpleasant problems.
   ```
   
  
  
   ### 1.0.6
   ```
   ------------------------

- Fix compatibility with pytest 3.3+.

Thanks to Bruno Oliveira for this fix!
   ```
   
  
  
   ### 1.0.5
   ```
   -------------------

- Fix ordering issue that would cause some tests to fail when run on systems
  using tmpfs.
   ```
   
  
  
   ### 1.0.4
   ```
   -------------------

- Fix another bug in :class:`~sybil.parsers.codeblock.CodeBlockParser` where
  a :rst:dir:`code-block` followed by a less-indented block would be
  incorrectly indented, resulting in a :class:`SyntaxError`.
   ```
   
  
  
   ### 1.0.3
   ```
   -------------------

- Fix bug in :func:`~sybil.parsers.codeblock.CodeBlockParser` where it
  would incorrectly parse indented code blocks.
   ```
   
  
  
   ### 1.0.2
   ```
   -------------------

- Fix bug in :func:`~sybil.parsers.codeblock.CodeBlockParser` where it
  would not find indented code blocks.
   ```
   
  
  
   ### 1.0.1
   ```
   -------------------

- Fix bug where unicode and byte literals weren&#39;t corrected in doctest
  tracebacks, even when :attr:`sybil.parsers.doctest.FIX_BYTE_UNICODE_REPR`
  was specified.
   ```
   
  
  
   ### 1.0.0
   ```
   -------------------

- Initial release
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/sybil
  - Changelog: https://pyup.io/changelogs/sybil/
  - Repo: https://github.com/cjw296/sybil
</details>



Co-authored-by: pyup-bot <[email protected]>