Remove Python 3.8 builds

Author: martinRenou

.github/workflows/packaging.yml

@@ -83,7 +83,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu, windows]
-        python: ['3.8', '3.13']
+        python: ['3.9', '3.13']
         dist: ['ipywidgets*.tar.gz']
         include:
           - python: '3.13'

.github/workflows/tests.yml

@@ -77,7 +77,7 @@ jobs:
     strategy:
       max-parallel: 4
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
       - uses: actions/checkout@v4