Bump babel from 2.3.4 to 2.9.1

dev-requirements.txt

@@ -4,43 +4,83 @@
 #
 #    pip-compile --output-file dev-requirements.txt dev-requirements.in
 #
-
-alabaster==0.7.8          # via sphinx
-argh==0.26.2              # via watchdog
-babel==2.3.4              # via sphinx
+alabaster==0.7.8
+    # via sphinx
+argh==0.26.2
+    # via watchdog
+babel==2.9.1
+    # via sphinx
+build==0.7.0
+    # via check-manifest
 bumpversion==0.5.3
-click==6.6                # via pip-tools
+    # via -r dev-requirements.in
+check-manifest==0.47
+    # via -r dev-requirements.in
+click==6.6
+    # via pip-tools
 coverage==4.1
-docutils==0.12            # via sphinx
-first==2.0.1              # via pip-tools
+    # via -r dev-requirements.in
+docutils==0.12
+    # via sphinx
+first==2.0.1
+    # via pip-tools
 flake8==2.5.4
-imagesize==0.7.1          # via sphinx
-Jinja2==2.8               # via sphinx
-MarkupSafe==0.23          # via jinja2
-mccabe==0.4.0             # via flake8
-pathtools==0.1.2          # via watchdog
-pep8==1.7.0               # via flake8
+    # via -r dev-requirements.in
+imagesize==0.7.1
+    # via sphinx
+jinja2==2.8
+    # via sphinx
+markupsafe==0.23
+    # via jinja2
+mccabe==0.4.0
+    # via flake8
+packaging==21.0
+    # via build
+pathtools==0.1.2
+    # via watchdog
+pep517==0.12.0
+    # via build
+pep8==1.7.0
+    # via flake8
 pip-tools==1.6.5
-pkginfo==1.2.1            # via twine
-pluggy==0.3.1             # via tox
-py==1.4.31                # via pytest, tox
-pycparser==2.14           # via cffi
-pyflakes==1.0.0           # via flake8
-Pygments==2.1.3           # via sphinx
-pytz==2016.4              # via babel
-PyYAML==3.11              # via watchdog
-requests-toolbelt==0.6.2  # via twine
-requests==2.10.0          # via requests-toolbelt, twine
-six==1.10.0               # via cryptography, pip-tools, sphinx
-snowballstemmer==1.2.1    # via sphinx
-Sphinx==1.4.1
+    # via -r dev-requirements.in
+pluggy==0.3.1
+    # via tox
+py==1.4.31
+    # via
+    #   pytest
+    #   tox
+pyflakes==1.0.0
+    # via flake8
+pygments==2.1.3
+    # via sphinx
+pyparsing==2.4.7
+    # via packaging
+pytest==2.9.1
+    # via -r dev-requirements.in
+pytz==2016.4
+    # via babel
+pyyaml==3.11
+    # via watchdog
+six==1.10.0
+    # via
+    #   pip-tools
+    #   sphinx
+snowballstemmer==1.2.1
+    # via sphinx
+sphinx==1.4.1
+    # via -r dev-requirements.in
+toml==0.10.2
+    # via check-manifest
+tomli==1.2.1
+    # via
+    #   build
+    #   pep517
 tox==2.3.1
-twine==1.6.5
-virtualenv==15.0.1        # via tox
+    # via -r dev-requirements.in
+virtualenv==15.0.1
+    # via tox
 watchdog==0.8.3
+    # via -r dev-requirements.in
 wheel==0.29.0
-pytest==2.9.1
-
-# The following packages are commented out because they are
-# considered to be unsafe in a requirements file:
-# setuptools                # via cryptography, twine
+    # via -r dev-requirements.in