feat(ci)!: drop support for Python 3.8

BREAKING CHANGE: Python 3.8 is no longer supported and will cause errors due to
the use of typing hints.

Author: shakefu

.github/workflows/ci.yaml

@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - run: pipx install poetry
@@ -71,7 +71,7 @@ jobs:
     needs: lint
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12"]
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       - run: pipx install poetry