Removed some platforms that are deprecated from build validation

Author: Magnitus-

.github/workflows/build.yml

@@ -6,7 +6,7 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ubuntu-20.04, ubuntu-22.04, ubuntu-24.04, windows-2019, windows-2022, macos-12, macos-13, macos-14]
+        os: [ubuntu-22.04, ubuntu-24.04, windows-2022, macos-12, macos-13, macos-14]
     runs-on: ${{ matrix.os }}
     steps:
     - name: Install Go