Remove deprecated builds

Author: Simon-Rey

.github/workflows/build.yml

@@ -14,23 +14,11 @@ on:
 jobs:
   build:
 
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        include:
-          - python-version: "3.7"
-            os: "ubuntu-20.04"
-          - python-version: "3.8"
-            os: "ubuntu-20.04"
-          - python-version: "3.9"
-            os: "ubuntu-20.04"
-          - python-version: "3.10"
-            os: "ubuntu-20.04"
-          - python-version: "3.11"
-            os: "ubuntu-latest"
-          - python-version: "3.12"
-            os: "ubuntu-latest"
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - name: Checkout