build: add isort as lint depedency

pyproject.toml

@@ -19,6 +19,9 @@ license = { text = "GPL-3.0+" }
 
 [dependency-groups]
 bump = ["git-cliff>=2.9.1", "python-semantic-release>=10.2.0"]
+lint = [
+    "isort>=6.0.1",
+]
 test = [
   "pytest>=4.2.1",
   "pytest-cov>=6.2.1",

uv.lock

@@ -287,6 +287,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/2c/e1/e6716421ea10d38022b952c159d5161ca1193197fb744506875fbb87ea7b/iniconfig-2.1.0-py3-none-any.whl", hash = "sha256:9deba5723312380e77435581c6bf4935c94cbfab9b1ed33ef8d238ea168eb760", size = 6050, upload-time = "2025-03-19T20:10:01.071Z" },
 ]
 
+[[package]]
+name = "isort"
+version = "6.0.1"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/b8/21/1e2a441f74a653a144224d7d21afe8f4169e6c7c20bb13aec3a2dc3815e0/isort-6.0.1.tar.gz", hash = "sha256:1cb5df28dfbc742e490c5e41bad6da41b805b0a8be7bc93cd0fb2a8a890ac450", size = 821955, upload-time = "2025-02-26T21:13:16.955Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/c1/11/114d0a5f4dabbdcedc1125dee0888514c3c3b16d3e9facad87ed96fad97c/isort-6.0.1-py3-none-any.whl", hash = "sha256:2dc5d7f65c9678d94c88dfc29161a320eec67328bc97aad576874cb4be1e9615", size = 94186, upload-time = "2025-02-26T21:13:14.911Z" },
+]
+
 [[package]]
 name = "itsdangerous"
 version = "2.2.0"
@@ -329,6 +338,9 @@ bump = [
     { name = "git-cliff" },
     { name = "python-semantic-release" },
 ]
+lint = [
+    { name = "isort" },
+]
 test = [
     { name = "pytest" },
     { name = "pytest-cov" },
@@ -349,6 +361,7 @@ bump = [
     { name = "git-cliff", specifier = ">=2.9.1" },
     { name = "python-semantic-release", specifier = ">=10.2.0" },
 ]
+lint = [{ name = "isort", specifier = ">=6.0.1" }]
 test = [
     { name = "pytest", specifier = ">=4.2.1" },
     { name = "pytest-cov", specifier = ">=6.2.1" },