fix(CI): remove windows 2019, add windows 2025 and macos-15 support

Change-Id: I42424e2918844789c3eab37a1900a4ed2605716a

.github/workflows/main.yml

@@ -109,17 +109,20 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - os: windows-2019
-            python_version: "3.10"
           - os: windows-2022
             python_version: "3.11"
           - os: windows-2022
             python_version: "3.12"
+          - os: windows-2025
+            python_version: "3.11"
+          - os: windows-2025
+            python_version: "3.12"
           - os: macos-13
             python_version: "3.12"
           - os: macos-14
             python_version: "3.12"
-
+          - os: macos-15
+            python_version: "3.12"
   paywalled-platforms:
     name: Tests on paywalled platforms
     if: github.repository_owner == 'Telecominfraproject'