upgrade CI dependencies

Author: belm0

.travis.yml

@@ -1,5 +1,5 @@
 language: python
-dist: bionic
+dist: focal
 
 git:
   depth: 1

requirements-dev.txt

@@ -1,185 +1,214 @@
 #
-# This file is autogenerated by pip-compile
+# This file is autogenerated by pip-compile with python 3.6
 # To update, run:
 #
 #    pip-compile --output-file=requirements-dev.txt requirements-dev.in setup.py
 #
 alabaster==0.7.12
     # via sphinx
-astroid==2.4.2
+astroid==2.9.3
     # via pylint
 async-generator==1.10
     # via
     #   pytest-trio
     #   trio
     #   trio-websocket (setup.py)
-attrs==20.3.0
+attrs==21.4.0
     # via
     #   -r requirements-dev.in
     #   outcome
     #   pytest
     #   trio
-babel==2.9.0
+babel==2.9.1
     # via sphinx
-bleach==3.2.1
+bleach==4.1.0
     # via readme-renderer
-certifi==2020.11.8
+certifi==2021.10.8
     # via requests
-cffi==1.14.3
+cffi==1.15.0
     # via cryptography
-chardet==3.0.4
+charset-normalizer==2.0.10
     # via requests
-click==8.0.1
+click==8.0.3
     # via pip-tools
 colorama==0.4.4
     # via twine
-coverage==5.3
+contextvars==2.4
+    # via
+    #   sniffio
+    #   trio
+coverage[toml]==6.2
     # via
     #   coveralls
     #   pytest-cov
-coveralls==2.1.2
+coveralls==3.3.1
     # via -r requirements-dev.in
-cryptography==3.2.1
+cryptography==3.3.2
     # via trustme
 docopt==0.6.2
     # via coveralls
-docutils==0.16
+docutils==0.17.1
     # via
     #   readme-renderer
     #   sphinx
-h11==0.11.0
+    #   sphinx-rtd-theme
+h11==0.12.0
     # via wsproto
-idna==2.10
+idna==3.3
     # via
     #   requests
     #   trio
     #   trustme
-imagesize==1.2.0
+imagesize==1.3.0
     # via sphinx
+immutables==0.16
+    # via contextvars
+importlib-metadata==4.8.3
+    # via
+    #   click
+    #   keyring
+    #   pep517
+    #   pluggy
+    #   pytest
+    #   twine
 iniconfig==1.1.1
     # via pytest
-isort==5.6.4
+isort==5.10.1
     # via pylint
-jinja2==2.11.2
+jinja2==3.0.3
     # via sphinx
-keyring==21.5.0
+keyring==23.4.1
     # via twine
-lazy-object-proxy==1.4.3
+lazy-object-proxy==1.7.1
     # via astroid
-markupsafe==1.1.1
+markupsafe==2.0.1
     # via jinja2
 mccabe==0.6.1
     # via pylint
-outcome==1.0.1
+outcome==1.1.0
     # via
     #   pytest-trio
     #   trio
-packaging==20.4
+packaging==21.3
     # via
     #   bleach
     #   pytest
     #   sphinx
-pep517==0.10.0
+pep517==0.12.0
     # via pip-tools
-pip-tools==6.1.0
+pip-tools==6.4.0
     # via -r requirements-dev.in
-pkginfo==1.6.1
+pkginfo==1.8.2
     # via twine
-pluggy==0.13.1
+platformdirs==2.4.0
+    # via pylint
+pluggy==1.0.0
     # via pytest
-py==1.9.0
+py==1.11.0
     # via pytest
-pycparser==2.20
+pycparser==2.21
     # via cffi
-pygments==2.7.2
+pygments==2.11.2
     # via
     #   readme-renderer
     #   sphinx
-pylint==2.6.0
+pylint==2.12.2
     # via -r requirements-dev.in
-pyparsing==2.4.7
+pyparsing==3.0.6
     # via packaging
-pytest-cov==2.10.1
-    # via -r requirements-dev.in
-pytest-trio==0.7.0
-    # via -r requirements-dev.in
-pytest==6.1.2
+pytest==6.2.5
     # via
     #   -r requirements-dev.in
     #   pytest-cov
     #   pytest-trio
-pytz==2020.4
+pytest-cov==3.0.0
+    # via -r requirements-dev.in
+pytest-trio==0.7.0
+    # via -r requirements-dev.in
+pytz==2021.3
     # via babel
-readme-renderer==28.0
+readme-renderer==32.0
     # via twine
-requests-toolbelt==0.9.1
-    # via twine
-requests==2.25.0
+requests==2.27.1
     # via
     #   coveralls
     #   requests-toolbelt
     #   sphinx
     #   twine
-rfc3986==1.4.0
+requests-toolbelt==0.9.1
     # via twine
-six==1.15.0
-    # via
-    #   astroid
-    #   bleach
-    #   cryptography
-    #   packaging
-    #   readme-renderer
+rfc3986==1.5.0
+    # via twine
+six==1.16.0
+    # via bleach
 sniffio==1.2.0
     # via trio
-snowballstemmer==2.0.0
+snowballstemmer==2.2.0
     # via sphinx
-sortedcontainers==2.3.0
+sortedcontainers==2.4.0
     # via trio
-sphinx-rtd-theme==0.5.0
-    # via -r requirements-dev.in
-sphinx==3.3.1
+sphinx==4.3.2
     # via
     #   -r requirements-dev.in
     #   sphinx-rtd-theme
     #   sphinxcontrib-trio
+sphinx-rtd-theme==1.0.0
+    # via -r requirements-dev.in
 sphinxcontrib-applehelp==1.0.2
     # via sphinx
 sphinxcontrib-devhelp==1.0.2
     # via sphinx
-sphinxcontrib-htmlhelp==1.0.3
+sphinxcontrib-htmlhelp==2.0.0
     # via sphinx
 sphinxcontrib-jsmath==1.0.1
     # via sphinx
 sphinxcontrib-qthelp==1.0.3
     # via sphinx
-sphinxcontrib-serializinghtml==1.1.4
+sphinxcontrib-serializinghtml==1.1.5
     # via sphinx
 sphinxcontrib-trio==1.1.2
     # via -r requirements-dev.in
 toml==0.10.2
     # via
-    #   pep517
     #   pylint
     #   pytest
-tqdm==4.51.0
+tomli==1.2.3
+    # via
+    #   coverage
+    #   pep517
+tqdm==4.62.3
     # via twine
-trio==0.17.0
+trio==0.19.0
     # via
     #   -r requirements-dev.in
     #   pytest-trio
     #   trio-websocket (setup.py)
-trustme==0.6.0
+trustme==0.9.0
     # via -r requirements-dev.in
-twine==3.2.0
+twine==3.7.1
     # via -r requirements-dev.in
-urllib3==1.26.2
+typed-ast==1.5.1
+    # via astroid
+typing-extensions==4.0.1
+    # via
+    #   astroid
+    #   immutables
+    #   importlib-metadata
+    #   pylint
+urllib3==1.26.8
     # via requests
 webencodings==0.5.1
     # via bleach
-wrapt==1.12.1
+wheel==0.37.1
+    # via pip-tools
+wrapt==1.13.3
     # via astroid
 wsproto==0.15.0
     # via trio-websocket (setup.py)
+zipp==3.6.0
+    # via
+    #   importlib-metadata
+    #   pep517
 
 # The following packages are considered to be unsafe in a requirements file:
 # pip