Bump isort from 5.8.0 to 5.9.1 (#866)

Bumps [isort](https://github.com/pycqa/isort) from 5.8.0 to 5.9.1.
- [Release notes](https://github.com/pycqa/isort/releases)
- [Changelog](https://github.com/PyCQA/isort/blob/main/CHANGELOG.md)
- [Commits](https://github.com/pycqa/isort/compare/5.8.0...5.9.1)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

poetry.lock

@@ -260,16 +260,17 @@ python-versions = "*"
 
 [[package]]
 name = "isort"
-version = "5.8.0"
+version = "5.9.1"
 description = "A Python utility / library to sort Python imports."
 category = "dev"
 optional = false
-python-versions = ">=3.6,<4.0"
+python-versions = ">=3.6.1,<4.0"
 
 [package.extras]
 pipfile_deprecated_finder = ["pipreqs", "requirementslib"]
 requirements_deprecated_finder = ["pipreqs", "pip-api"]
 colors = ["colorama (>=0.4.3,<0.5.0)"]
+plugins = ["setuptools"]
 
 [[package]]
 name = "jinja2"
@@ -798,7 +799,7 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pyt
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "e03154bde43eb0d2936dc263213c57e791357742fa3af1550405e5851d5d7152"
+content-hash = "9defef979938066d992839c5e123b97f6eded656da5852d42aeba10a4cbf8ea5"
 
 [metadata.files]
 alabaster = [
@@ -951,8 +952,8 @@ iniconfig = [
     {file = "iniconfig-1.1.1.tar.gz", hash = "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"},
 ]
 isort = [
-    {file = "isort-5.8.0-py3-none-any.whl", hash = "sha256:2bb1680aad211e3c9944dbce1d4ba09a989f04e238296c87fe2139faa26d655d"},
-    {file = "isort-5.8.0.tar.gz", hash = "sha256:0a943902919f65c5684ac4e0154b1ad4fac6dcaa5d9f3426b732f1c8b5419be6"},
+    {file = "isort-5.9.1-py3-none-any.whl", hash = "sha256:8e2c107091cfec7286bc0f68a547d0ba4c094d460b732075b6fba674f1035c0c"},
+    {file = "isort-5.9.1.tar.gz", hash = "sha256:83510593e07e433b77bd5bff0f6f607dbafa06d1a89022616f02d8b699cfcd56"},
 ]
 jinja2 = [
     {file = "Jinja2-3.0.1-py3-none-any.whl", hash = "sha256:1f06f2da51e7b56b8f238affdd6b4e2c61e39598a378cc49345bc1bd42a978a4"},

pyproject.toml

@@ -58,7 +58,7 @@ sphinx-rtd-theme = "^0.5"
 babel = "^2.9.1"
 babelgladeextractor = "^0.7"
 flake8 = "^3.9"
-isort = "^5.8"
+isort = "^5.9"
 
 [tool.poetry.scripts]
 gaphor = 'gaphor.ui:main'