Bump isort from 5.6.4 to 5.7.0

Bumps [isort](https://github.com/pycqa/isort) from 5.6.4 to 5.7.0.
- [Release notes](https://github.com/pycqa/isort/releases)
- [Changelog](https://github.com/PyCQA/isort/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/pycqa/isort/compare/5.6.4...5.7.0)

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

poetry.lock

@@ -254,7 +254,7 @@ python-versions = "*"
 
 [[package]]
 name = "isort"
-version = "5.6.4"
+version = "5.7.0"
 description = "A Python utility / library to sort Python imports."
 category = "dev"
 optional = false
@@ -774,7 +774,7 @@ testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "cbc656297e28905fa9577e6c81639309e71497baf70938b1b001bb3eb8b13d7d"
+content-hash = "9c9d71109f2bb45b26c9e6ca81848a1c3aab7068d986e6ac6ea324144f99ac26"
 
 [metadata.files]
 alabaster = [
@@ -908,8 +908,8 @@ iniconfig = [
     {file = "iniconfig-1.1.1.tar.gz", hash = "sha256:bc3af051d7d14b2ee5ef9969666def0cd1a000e121eaea580d4a313df4b37f32"},
 ]
 isort = [
-    {file = "isort-5.6.4-py3-none-any.whl", hash = "sha256:dcab1d98b469a12a1a624ead220584391648790275560e1a43e54c5dceae65e7"},
-    {file = "isort-5.6.4.tar.gz", hash = "sha256:dcaeec1b5f0eca77faea2a35ab790b4f3680ff75590bfcb7145986905aab2f58"},
+    {file = "isort-5.7.0-py3-none-any.whl", hash = "sha256:fff4f0c04e1825522ce6949973e83110a6e907750cd92d128b0d14aaaadbffdc"},
+    {file = "isort-5.7.0.tar.gz", hash = "sha256:c729845434366216d320e936b8ad6f9d681aab72dc7cbc2d51bedc3582f3ad1e"},
 ]
 jinja2 = [
     {file = "Jinja2-2.11.2-py2.py3-none-any.whl", hash = "sha256:f0a4641d3cf955324a89c04f3d94663aa4d638abe8f733ecd3582848e1c37035"},

pyproject.toml

@@ -55,7 +55,7 @@ sphinx-rtd-theme = "^0.5"
 babel = "^2.9.0"
 babelgladeextractor = "^0.7"
 flake8 = "^3.8"
-isort = "^5.6"
+isort = "^5.7"
 
 [tool.poetry.scripts]
 gaphor = 'gaphor.ui:main'