Merge pull request #280 from python-trio/dependabot/pip/urllib3-1.26.6

Bump urllib3 from 1.26.4 to 1.26.6

Author: pquentin

docs-requirements.txt

@@ -48,5 +48,5 @@ sphinxcontrib-qthelp==1.0.3
     # via sphinx
 sphinxcontrib-serializinghtml==1.1.4
     # via sphinx
-urllib3==1.26.4
+urllib3==1.26.6
     # via requests

test-requirements.txt

@@ -48,12 +48,12 @@ pygments==2.8.1
     # via sphinx
 pyparsing==2.4.7
     # via packaging
-pytest-cov==2.11.1
-    # via -r test-requirements.in
 pytest==6.2.3
     # via
     #   -r test-requirements.in
     #   pytest-cov
+pytest-cov==2.11.1
+    # via -r test-requirements.in
 pytz==2021.1
     # via babel
 requests==2.25.1
@@ -76,5 +76,5 @@ sphinxcontrib-serializinghtml==1.1.4
     # via sphinx
 toml==0.10.2
     # via pytest
-urllib3==1.26.4
+urllib3==1.26.6
     # via requests