chore: Drop support for Python 3.8 (eol 2024-10-07) (#7)

Author: devin-ai-integration[bot]

.github/workflows/ci.yml

@@ -22,7 +22,7 @@ jobs:
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: 3.9
 
       - name: Install poetry
         run: pipx install poetry

pyproject.toml

@@ -4,9 +4,10 @@ version = "0.1.0"
 description = ""
 authors = ["LaunchDarkly <[email protected]>"]
 readme = "README.md"
+package-mode = false
 
 [tool.poetry.dependencies]
-python = "^3.8"
+python = "^3.9"
 launchdarkly-openfeature-server = "^0.2.0"