Bump pytest-cov from 2.10.1 to 2.11.1

Bumps [pytest-cov](https://github.com/pytest-dev/pytest-cov) from 2.10.1 to 2.11.1.
- [Release notes](https://github.com/pytest-dev/pytest-cov/releases)
- [Changelog](https://github.com/pytest-dev/pytest-cov/blob/master/CHANGELOG.rst)
- [Commits](https://github.com/pytest-dev/pytest-cov/compare/v2.10.1...v2.11.1)

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

Pipfile.lock

@@ -675,11 +675,11 @@
         },
         "pytest-cov": {
             "hashes": [
-                "sha256:45ec2d5182f89a81fc3eb29e3d1ed3113b9e9a873bcddb2a71faaab066110191",
-                "sha256:47bd0ce14056fdd79f93e1713f88fad7bdcc583dcd7783da86ef2f085a0bb88e"
+                "sha256:359952d9d39b9f822d9d29324483e7ba04a3a17dd7d05aa6beb7ea01e359e5f7",
+                "sha256:bdb9fdb0b85a7cc825269a4c56b48ccaa5c7e365054b6038772c32ddcdc969da"
             ],
             "index": "pypi",
-            "version": "==2.10.1"
+            "version": "==2.11.1"
         },
         "pytest-redis": {
             "hashes": [

requirements-dev.txt

@@ -13,7 +13,7 @@ port-for==0.4
 psutil==5.8.0 ; sys_platform != 'cygwin'
 py==1.10.0
 pyparsing==2.4.7
-pytest-cov==2.10.1
+pytest-cov==2.11.1
 pytest-redis==2.0.0
 pytest==6.2.2
 redis==3.5.3