Python Package(deps): Bump pytest-cov in /python-package

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 2.11.1 to 2.12.0.
- [Release notes](https://github.com/pytest-dev/pytest-cov/releases)
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](pytest-dev/pytest-cov@v2.11.1...v2.12.0)

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

python-package/requirements/dev.txt

@@ -14,7 +14,7 @@ autopep8==1.5.7
     # via -r requirements/dev.in
 click==7.1.2
     # via pip-tools
-coverage==5.5
+coverage[toml]==5.5
     # via
     #   -r requirements/tests.in
     #   pytest-cov
@@ -84,7 +84,7 @@ pyflakes==2.3.1
     # via flake8
 pyparsing==2.4.7
     # via packaging
-pytest-cov==2.11.1
+pytest-cov==2.12.0
     # via -r requirements/tests.in
 pytest-mock==3.6.1
     # via -r requirements/tests.in
@@ -102,6 +102,7 @@ testfixtures==6.17.1
 toml==0.10.2
     # via
     #   autopep8
+    #   coverage
     #   pep517
     #   pytest
     #   tox

python-package/requirements/tests.txt

@@ -6,7 +6,7 @@
 #
 attrs==21.2.0
     # via pytest
-coverage==5.5
+coverage[toml]==5.5
     # via
     #   -r requirements/tests.in
     #   pytest-cov
@@ -24,7 +24,7 @@ py==1.10.0
     # via pytest
 pyparsing==2.4.7
     # via packaging
-pytest-cov==2.11.1
+pytest-cov==2.12.0
     # via -r requirements/tests.in
 pytest-mock==3.6.1
     # via -r requirements/tests.in
@@ -34,4 +34,6 @@ pytest==6.2.4
     #   pytest-cov
     #   pytest-mock
 toml==0.10.2
-    # via pytest
+    # via
+    #   coverage
+    #   pytest