requirements-*: Update the additional requirements

Update the development, coding style and testing requirements to newest
available versions.

requirements-dev.txt

@@ -4,40 +4,39 @@
 #
 --no-binary psycopg2
 
-attrs==19.1.0             # via packaging
 autoflake==1.3.1
 autopep8==1.4.4
 backcall==0.1.0           # via ipython
-decorator==4.4.0          # via ipython, traitlets
-django-extensions==2.2.1
+decorator==4.4.1          # via ipython, traitlets
+django-extensions==2.2.5
 filelock==3.0.12          # via tox
-importlib-metadata==0.20  # via pluggy, tox
-ipython==7.8.0
+importlib-metadata==1.2.0  # via pluggy, tox
+ipython==7.9.0
 ipython-genutils==0.2.0   # via traitlets
 isort==4.3.21
 jedi==0.15.1              # via ipython
-more-itertools==7.2.0     # via zipp
-packaging==19.1           # via tox
+more-itertools==8.0.0     # via zipp
+packaging==19.2           # via tox
 parso==0.5.1              # via jedi
 pexpect==4.7.0            # via ipython
 pickleshare==0.7.5        # via ipython
-pluggy==0.12.0            # via tox
-prompt-toolkit==2.0.9     # via ipython
+pluggy==0.13.1            # via tox
+prompt-toolkit==2.0.10    # via ipython
 ptyprocess==0.6.0         # via pexpect
 py==1.8.0                 # via tox
 pycodestyle==2.5.0        # via autopep8
 pydocstyle==4.0.1
 pyflakes==2.1.1           # via autoflake
-pygments==2.4.2           # via ipython
-pyparsing==2.4.2          # via packaging
+pygments==2.5.2           # via ipython
+pyparsing==2.4.5          # via packaging
 six==1.13.0               # via django-extensions, packaging, prompt-toolkit, tox, traitlets
-snowballstemmer==1.9.0    # via pydocstyle
+snowballstemmer==2.0.0    # via pydocstyle
 toml==0.10.0              # via tox
-tox==3.14.0
-traitlets==4.3.2          # via ipython
-virtualenv==16.7.5        # via tox
+tox==3.14.2
+traitlets==4.3.3          # via ipython
+virtualenv==16.7.8        # via tox
 wcwidth==0.1.7            # via prompt-toolkit
-werkzeug==0.15.5
+werkzeug==0.16.0
 zipp==0.6.0               # via importlib-metadata
 
 # The following packages are considered to be unsafe in a requirements file:

requirements-style.txt

@@ -5,14 +5,15 @@
 --no-binary psycopg2
 
 entrypoints==0.3          # via flake8
-flake8==3.7.8
-flake8-isort==2.7.0
+flake8==3.7.9
+flake8-isort==2.8.0
 flake8-polyfill==1.0.2    # via pep8-naming
-flake8-print==3.1.0
-isort==4.3.21             # via flake8-isort
+flake8-print==3.1.4
+isort[pyproject]==4.3.21  # via flake8-isort
 mccabe==0.6.1             # via flake8
-pep8-naming==0.8.2
+pep8-naming==0.9.1
 pycodestyle==2.5.0        # via flake8, flake8-print
 pyflakes==2.1.1           # via flake8
 six==1.13.0               # via flake8-print
-testfixtures==6.10.0      # via flake8-isort
+testfixtures==6.10.3      # via flake8-isort
+toml==0.10.0              # via isort

requirements-test.txt

@@ -4,33 +4,32 @@
 #
 --no-binary psycopg2
 
-atomicwrites==1.3.0       # via pytest
-attrs==19.1.0             # via packaging, pytest
+attrs==19.3.0             # via pytest
 certifi==2019.11.28       # via requests
 chardet==3.0.4            # via requests
 coverage==4.5.4           # via pytest-cov
 factory-boy==2.12.0
-faker==2.0.1              # via factory-boy
+faker==3.0.0              # via factory-boy
 freezegun==0.3.12
 idna==2.8                 # via requests
-importlib-metadata==0.20  # via pluggy, pytest
+importlib-metadata==1.2.0  # via pluggy, pytest
 inflection==0.3.1         # via pytest-factoryboy
-more-itertools==7.2.0     # via pytest, zipp
-packaging==19.1           # via pytest
-pathlib2==2.3.4           # via pytest
-pluggy==0.12.0            # via pytest
+more-itertools==8.0.0     # via pytest, zipp
+packaging==19.2           # via pytest
+pathlib2==2.3.5           # via pytest
+pluggy==0.13.1            # via pytest
 py==1.8.0                 # via pytest
-pyparsing==2.4.2          # via packaging
-pytest==5.1.2
-pytest-cov==2.7.1
-pytest-django==3.5.1
+pyparsing==2.4.5          # via packaging
+pytest==5.3.1
+pytest-cov==2.8.1
+pytest-django==3.7.0
 pytest-factoryboy==2.0.3
 python-dateutil==2.8.1    # via faker, freezegun
 pyyaml==5.2
 requests==2.22.0          # via requests-mock
 requests-mock==1.7.0
 six==1.13.0               # via faker, freezegun, packaging, pathlib2, python-dateutil, requests-mock
-text-unidecode==1.2       # via faker
+text-unidecode==1.3       # via faker
 urllib3==1.25.7           # via requests
 wcwidth==0.1.7            # via pytest
 zipp==0.6.0               # via importlib-metadata