Bump pylint from 2.4.4 to 2.5.2 (#40)

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.4.4 to 2.5.2.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/master/ChangeLog)
- [Commits](https://github.com/PyCQA/pylint/compare/pylint-2.4.4...pylint-2.5.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

requirements-dev.txt

@@ -5,7 +5,7 @@
 #    pip-compile requirements-dev.in
 #
 appdirs==1.4.3            # via black
-astroid==2.3.3            # via pylint
+astroid==2.4.1            # via pylint
 attrs==19.3.0             # via black, pytest
 black==19.10b0            # via -r requirements-dev.in
 bleach==3.1.4             # via readme-renderer
@@ -37,7 +37,7 @@ pycodestyle==2.5.0        # via flake8
 pycparser==2.19           # via cffi
 pyflakes==2.1.1           # via flake8
 pygments==2.5.2           # via readme-renderer
-pylint==2.4.4             # via -r requirements-dev.in
+pylint==2.5.2             # via -r requirements-dev.in
 pyparsing==2.4.5          # via packaging
 pytest==5.3.5             # via -r requirements-dev.in
 readme-renderer==24.0     # via twine
@@ -46,7 +46,7 @@ requests-toolbelt==0.9.1  # via twine
 requests==2.22.0          # via requests-toolbelt, twine
 secretstorage==3.1.1      # via keyring
 six==1.14.0               # via astroid, bleach, cryptography, packaging, pip-tools, readme-renderer, tox
-toml==0.10.0              # via black, tox
+toml==0.10.0              # via black, pylint, tox
 tox==3.15.1               # via -r requirements-dev.in
 tqdm==4.40.2              # via twine
 twine==3.1.1              # via -r requirements-dev.in