chore(deps-dev): bump pylint from 2.7.0 to 2.9.1

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.7.0 to 2.9.1.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/main/ChangeLog)
- [Commits](https://github.com/PyCQA/pylint/compare/pylint-2.7.0...v2.9.1)

---
updated-dependencies:
- dependency-name: pylint
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

poetry.lock

@@ -8,15 +8,16 @@ python-versions = "*"
 
 [[package]]
 name = "astroid"
-version = "2.5"
+version = "2.6.2"
 description = "An abstract syntax tree for Python with inference support."
 category = "dev"
 optional = false
-python-versions = ">=3.6"
+python-versions = "~=3.6"
 
 [package.dependencies]
 lazy-object-proxy = ">=1.4.0"
 typed-ast = {version = ">=1.4.0,<1.5", markers = "implementation_name == \"cpython\" and python_version < \"3.8\""}
+typing-extensions = {version = ">=3.7.4", markers = "python_version < \"3.8\""}
 wrapt = ">=1.11,<1.13"
 
 [[package]]
@@ -227,22 +228,19 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 
 [[package]]
 name = "pylint"
-version = "2.7.0"
+version = "2.9.1"
 description = "python code static checker"
 category = "dev"
 optional = false
 python-versions = "~=3.6"
 
 [package.dependencies]
-astroid = "2.5.0"
+astroid = ">=2.6.2,<2.7"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
 isort = ">=4.2.5,<6"
 mccabe = ">=0.6,<0.7"
 toml = ">=0.7.1"
 
-[package.extras]
-docs = ["sphinx (>=3.2,<4.0)", "python-docs-theme"]
-
 [[package]]
 name = "pyparsing"
 version = "2.4.7"
@@ -305,6 +303,14 @@ category = "dev"
 optional = false
 python-versions = "*"
 
+[[package]]
+name = "typing-extensions"
+version = "3.10.0.0"
+description = "Backported and Experimental Type Hints for Python 3.5+"
+category = "dev"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "wrapt"
 version = "1.11.2"
@@ -328,7 +334,7 @@ testing = ["jaraco.itertools", "func-timeout"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.6"
-content-hash = "441f4ec509fbee3d303586c3abba92d71c5148600632f11c7069c709fa67774c"
+content-hash = "e7f98033d2f3cd4d25fa289f1efff55b8fbfb8dd81c5e0f678c0d43177d49b90"
 
 [metadata.files]
 appdirs = [
@@ -336,8 +342,8 @@ appdirs = [
     {file = "appdirs-1.4.3.tar.gz", hash = "sha256:9e5896d1372858f8dd3344faf4e5014d21849c756c8d5701f78f8a103b372d92"},
 ]
 astroid = [
-    {file = "astroid-2.5-py3-none-any.whl", hash = "sha256:87ae7f2398b8a0ae5638ddecf9987f081b756e0e9fc071aeebdca525671fc4dc"},
-    {file = "astroid-2.5.tar.gz", hash = "sha256:b31c92f545517dcc452f284bc9c044050862fbe6d93d2b3de4a215a6b384bf0d"},
+    {file = "astroid-2.6.2-py3-none-any.whl", hash = "sha256:606b2911d10c3dcf35e58d2ee5c97360e8477d7b9f3efc3f24811c93e6fc2cd9"},
+    {file = "astroid-2.6.2.tar.gz", hash = "sha256:38b95085e9d92e2ca06cf8b35c12a74fa81da395a6f9e65803742e6509c05892"},
 ]
 atomicwrites = [
     {file = "atomicwrites-1.3.0-py2.py3-none-any.whl", hash = "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4"},
@@ -498,8 +504,8 @@ py = [
     {file = "py-1.10.0.tar.gz", hash = "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3"},
 ]
 pylint = [
-    {file = "pylint-2.7.0-py3-none-any.whl", hash = "sha256:3ea3926700db399765db1faf53860f11e4e981a090646e9eacd01ca78e020579"},
-    {file = "pylint-2.7.0.tar.gz", hash = "sha256:2e0c6749d809985e4f181c336a8f89b2b797340d8049160bf95f35a3f0ecf6fc"},
+    {file = "pylint-2.9.1-py3-none-any.whl", hash = "sha256:647fa5882fd49d7f34d07d0a23702689d5cf10a81dcd74e79bd524603d40b371"},
+    {file = "pylint-2.9.1.tar.gz", hash = "sha256:d8f9e6ff7bc2e64a724b1b4409f0a30014891fc006ffbf68b590015e364322ec"},
 ]
 pyparsing = [
     {file = "pyparsing-2.4.7-py2.py3-none-any.whl", hash = "sha256:ef9d7589ef3c200abe66653d3f1ab1033c3c419ae9b9bdb1240a85b024efc88b"},
@@ -574,6 +580,11 @@ typed-ast = [
     {file = "typed_ast-1.4.1-cp39-cp39-win_amd64.whl", hash = "sha256:3742b32cf1c6ef124d57f95be609c473d7ec4c14d0090e5a5e05a15269fb4d0c"},
     {file = "typed_ast-1.4.1.tar.gz", hash = "sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b"},
 ]
+typing-extensions = [
+    {file = "typing_extensions-3.10.0.0-py2-none-any.whl", hash = "sha256:0ac0f89795dd19de6b97debb0c6af1c70987fd80a2d62d1958f7e56fcc31b497"},
+    {file = "typing_extensions-3.10.0.0-py3-none-any.whl", hash = "sha256:779383f6086d90c99ae41cf0ff39aac8a7937a9283ce0a414e5dd782f4c94a84"},
+    {file = "typing_extensions-3.10.0.0.tar.gz", hash = "sha256:50b6f157849174217d0656f99dc82fe932884fb250826c18350e159ec6cdf342"},
+]
 wrapt = [
     {file = "wrapt-1.11.2.tar.gz", hash = "sha256:565a021fd19419476b9362b05eeaa094178de64f8361e44468f9e9d7843901e1"},
 ]

pyproject.toml

@@ -17,7 +17,7 @@ contextvars = { version = "^2.4", python = "~3.6" }
 
 [tool.poetry.dev-dependencies]
 pytest = "^6.2"
-pylint = "^2.7"
+pylint = "^2.9"
 black = {version = "^19.0", allow-prereleases = true}
 rope = "^0.14.0"
 isort = "^4.3"