Fix: Bump minimum Python to 3.11 for datetime.fromisoformat Z suffix support

Author: Chocapikk

.github/workflows/action.yml

@@ -6,7 +6,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.11", "3.12", "3.13"]
         poetry-version: ["2.3.1"]
         os: ["ubuntu-latest", "macos-latest", "windows-latest"]
     runs-on: ${{ matrix.os }}

pyproject.toml

@@ -11,7 +11,7 @@ repository = "https://github.com/leakix/l9format-python"
 documentation = "https://github.com/leakix/l9format-python"
 
 [tool.poetry.dependencies]
-python = "^3.10"
+python = "^3.11"
 serde = "^0.9.0"
 
 [tool.poetry.group.dev.dependencies]
@@ -41,7 +41,7 @@ profile = "black"
 line_length = 80
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.11"
 warn_return_any = true
 warn_unused_configs = true
 disallow_untyped_defs = true