chore(deps): update dependency pytest-cov to v3 (#177)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

poetry.lock

@@ -105,6 +105,9 @@ category = "dev"
 optional = false
 python-versions = ">=3.6"
 
+[package.dependencies]
+tomli = {version = "*", optional = true, markers = "extra == \"toml\""}
+
 [package.extras]
 toml = ["tomli"]
 
@@ -560,16 +563,15 @@ testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xm
 
 [[package]]
 name = "pytest-cov"
-version = "2.12.1"
+version = "3.0.0"
 description = "Pytest plugin for measuring coverage."
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+python-versions = ">=3.6"
 
 [package.dependencies]
-coverage = ">=5.2.1"
+coverage = {version = ">=5.2.1", extras = ["toml"]}
 pytest = ">=4.6"
-toml = "*"
 
 [package.extras]
 testing = ["fields", "hunter", "process-tests", "six", "pytest-xdist", "virtualenv"]
@@ -835,7 +837,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.0"
-content-hash = "cae585ca8ecf785a67bee16a2e2826fcfc1f531044fe6566a540e32ee6d2575c"
+content-hash = "82e5027f80303483b0b982c2a13500cd8d0bfafca65306d7a47be4277f389cdf"
 
 [metadata.files]
 anyconfig = [
@@ -1092,8 +1094,8 @@ pytest = [
     {file = "pytest-6.2.5.tar.gz", hash = "sha256:131b36680866a76e6781d13f101efb86cf674ebb9762eb70d3082b6f29889e89"},
 ]
 pytest-cov = [
-    {file = "pytest-cov-2.12.1.tar.gz", hash = "sha256:261ceeb8c227b726249b376b8526b600f38667ee314f910353fa318caa01f4d7"},
-    {file = "pytest_cov-2.12.1-py2.py3-none-any.whl", hash = "sha256:261bb9e47e65bd099c89c3edf92972865210c36813f80ede5277dceb77a4a62a"},
+    {file = "pytest-cov-3.0.0.tar.gz", hash = "sha256:e7f0f5b1617d2210a2cabc266dfe2f4c75a8d32fb89eafb7ad9d06f6d076d470"},
+    {file = "pytest_cov-3.0.0-py3-none-any.whl", hash = "sha256:578d5d15ac4a25e5f961c938b85a05b09fdaae9deef3bb6de9a6e766622ca7a6"},
 ]
 pytest-mock = [
     {file = "pytest-mock-3.6.1.tar.gz", hash = "sha256:40217a058c52a63f1042f0784f62009e976ba824c418cced42e88d5f40ab0e62"},

pyproject.toml

@@ -70,7 +70,7 @@ flake8-quotes = "3.3.0"
 pep8-naming = "0.12.1"
 pydocstyle = "6.1.1"
 pytest = "6.2.5"
-pytest-cov = "2.12.1"
+pytest-cov = "3.0.0"
 pytest-mock = "3.6.1"
 tomli = "1.2.1"
 yapf = "0.31.0"