ci: drop python < 3.10 support

Author: ahoarau

.github/workflows/release-linux.yml

@@ -21,7 +21,7 @@ jobs:
       fail-fast: false
       matrix:
         arch: ["x86_64", "aarch64"]
-        build: ["cp38-*", "cp39-*", "cp310-*", "cp311-*", "cp312-*", "cp313-*"]
+        build: ["cp310-*", "cp311-*", "cp312-*", "cp313-*"]
         include:
           - arch: "x86_64"
             os: ubuntu-latest
@@ -64,7 +64,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, ubuntu-24.04-arm]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
         exclude:
           - os: "ubuntu-24.04-arm"
             python-version: "3.8"

.github/workflows/release-osx-win.yml

@@ -20,7 +20,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
         os: [macos-15-intel, macos-14, windows-2022]
         include:
           - os: windows-2022