Update runner image (#324)

Signed-off-by: Sergio Castaño Arteaga <[email protected]>

Author: tegioz

.github/workflows/chart.yml

@@ -9,7 +9,7 @@ permissions: read-all
 
 jobs:
   lint-and-test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v4