Update pycares to 3.1.0

[pyup-bot]

This PR updates pycares from 2.3.0 to 3.1.0.

Changelog

3.1.0

=============
- misc: add Python 3.8 classifier
- (origin/master, origin/HEAD) build: use Travis to build Python Wheels
- ci: use GH Actions to test on macOS
- ci: run tests in Python 3.8 too
- test: remove no longer valid test
- test: remove empty test
- errno: return str from errno.strerror
- core: fix crash when processing .onion queries
- test: fix test_query_txt_multiple_chunked
- doc: fix path of _version.py file
- core: fix support for ARES_OPT_LOOKUPS option
- build: add cygwin support
- core: fix struct in6_addr alignment
- misc: simplify non-ascii txt test example
- core: fix long TXT record with non-ascii bytes
- build: remove extra add_include_dir line on linux
- build: fix testing manylinux wheels

3.0.0

=============
(changes since version 2.x)
- core: drop C backend in favor of CFFI
- core: drop Python < 3.5 support
- core: use None instead of -1 for default values
- core: add support for ANY queries
- core: automagically encode query names with IDNA
- core: add support for ares_search

3.0.0b5

===============
- core: add support for ares_search

3.0.0b4

===============
- core: give better errors descriptions for AresError
- test: add IDNA test using the query() API
- cffi: simplify destroying ares channel

3.0.0b3

===============
- core: reorganize package
- core: automagically encode query names with IDNA

3.0.0b2

===============
- errno: fix errorcode dictionary

3.0.0b1

===============
- core: add support for ANY queries
- cffi: fix memory leak

3.0.0b0

===============
- core: drop C backend
- core: drop Python < 3.5 support
- core: use None instead of -1 for default values
- core: set TTL to -1 when we cannot parse it

2.4.0

=============
- misc: fix building wheels for unavailable Python versions
- test: skip getaddrinfo6 test on Travis
- doc: add FreeBSD building instructions
- build: fix MinGW build
- ci, misc: add support for CPython 3.7
- ci: run on latest PyPy versions on TravisCI
- examples: extra examples
- ci: fix AppVeyor build
- test: fix TXT test
- core: fix repr for PTR results

Links

• PyPI: https://pypi.org/project/pycares
• Changelog: https://pyup.io/changelogs/pycares/
• Repo: http://github.com/saghul/pycares

[coveralls]

Coverage remained the same at 30.441% when pulling c135aef on pyup-update-pycares-2.3.0-to-3.1.0 into e67070d on master.

[pyup-bot]

Closing this in favor of #371