Update pyproject.toml

Automatically created by the almighty Aleksolotl.

pyproject.toml

 [build-system]
-requires = [ "poetry-core>=1.0.0",]
+requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
@@ -8,7 +8,7 @@ version = "3.0.1.dev0"
 readme = "README.rst"
 description = "AlekSIS (School Information System)\u200a—\u200aApp Χρόνος (digital timetables)"
 authors = [ "Dominik George <dominik.george@teckids.org>", "Julian Leucker <leuckeju@katharineum.de>", "Frank Poetzsch-Heffter <p-h@katharineum.de>", "Tom Teichler <tom.teichler@teckids.org>", "Jonathan Weth <wethjo@katharineum.de>", "Hangzhi Yu <yuha@katharineum.de>", "Lloyd Meins <meinsll@katharineum.de>",]
-maintainers = [ "Jonathan Weth <dev@jonathanweth.de>", "Dominik George <dominik.george@teckids.org>",]
+maintainers = ["Jonathan Weth <dev@jonathanweth.de>", "Dominik George <dominik.george@teckids.org>"]
 license = "EUPL-1.2-or-later"
 homepage = "https://aleksis.org"
 repository = "https://edugit.org/AlekSIS/official/AlekSIS-App-Chronos"
@@ -50,10 +50,9 @@ priority = "primary"
 name = "gitlab"
 url = "https://edugit.org/api/v4/projects/461/packages/pypi/simple"
 priority = "secondary"
-
 [tool.black]
 line-length = 100
-exclude = [ "/migrations/",]
+exclude = "/migrations/"
 
 [tool.poetry.dependencies]
 python = "^3.9"