Run GHA when a tag is pushed

Author: geographika

.github/workflows/main.yml

@@ -5,14 +5,16 @@ on:
     branches:
     - master
     - dev
+    tags:
+      - '*'
   pull_request:
     branches:
     - master
 
 jobs:
   test:
 
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         python-version: [3.8, 3.9, "3.10", "3.11"]